How to find the quotient of dividing a number by numbers modulo m?

Question

C++ / C#

Hello!
Given two numbers a and b, how to find (a/b) mod m?

Answer 1

Given two numbers a and b, how to find (a/b) mod m?

Divide a by b and take the result modulo m.
Here is such an almost useless answer to a uselessly posed question.
Hint: the other answer implies some kind of optimization, and for this the question lacks the expected values ​​of a, b and m and the expected performance.