Working with objects. How to pass an integer to an object?

Question

Java

There are 3 additional class, simplified for example. In the Multiplication class - only work with application logic. In the MultiplicationResult class, the results of processing are added, Formatter - draws what you need on the screen, taking into account the processed data.
Main class - this is what should be the result.

classMain

package multiplication;

public class Main {

    public static void main(String args[]) {
        int multiplier = 10;
        int multiplicand = 2;

        Multiplication multiplication = new Multiplication();
        Formatter formatter = new Formatter();
        MultiplicationResult result = multiplication.multiply(multiplier, multiplicand);
        String formattedResult = formatter.format(result);

        System.out.println(formattedResult);
    }
}

class Formatter

package multiplication;

public class Formatter {
    
     String format(MultiplicationResult result) {
         String drawString =
                 result.getMultiplicand()
                 + " * "+
                 +result.getMultiplier()
                 +" = "
                 +result.toString();
        return drawString;
        }
    }

class Multiplication

package multiplication;

public class Multiplication {

    public int multiply(int multiplier, int multiplicand) {
        int result = multiplier * multiplicand;
        return result;
    }
}

class MultiplicationResult

package multiplication;

class MultiplicationResult {

    int multiplier;
    int multiplicand;

    MultiplicationResult() {
        this.multiplier = multiplier;
        this.multiplicand = multiplicand;
    }

    public int getMultiplier() {
        return multiplier;
    }

    public void setMultiplier(int multiplier) {
        this.multiplier = multiplier;
    }

    public int getMultiplicand() {
        return multiplicand;
    }

    public void setMultiplicand(int multiplicand) {
        this.multiplicand = multiplicand;
    }

    MultiplicationResult result(int multiplier, int multiplicand) {
        MultiplicationResult res = new MultiplicationResult();
        Multiplication multi = new Multiplication();

        if (multiplicand == 0 || multiplier == 0) {
            System.out.println("Result is 0");
        } else {
          int product=  multi.multiply(multiplier, multiplicand);
        }
        res= (int) product;
        return res;
    }
}

The output should be:
10 * 2 = 20
I have a misunderstanding on the step in the MultiplicationResult class

res= (int) product;
        return res;

There is a logic where the result is returned as a pure integer or a list of numbers. There can be many methods. But first you need to understand how to deal with one.