How to make a decision when translating systems of calculation?

Question

Python

How to make a complete solution in this code as in the screenshots? When converting from decimal to any other system, you need to divide, and if vice versa, then multiply.

def convert_base(num, to_base=10, from_base=10):
    # first convert to decimal number
    n = int(num, from_base) if isinstance(num, str) else num
    # now convert decimal to 'to_base' base
    alphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    res = ""
    while n > 0:
        n,m = divmod(n, to_base)
        res += alphabet[m]
    return res[::-1]

Answer 1

If you just need to display the "ladder", then you need to format the string and output it in the while loop, for example, increasing the indentation each loop.