What is the difference between this modulo implementation and Python's builtin?

[TheTechRobo]

In python you can do modulo like: number1 % number2. The first number doesn't have to be bigger than the second number.

What is the difference between the typical implementation (python's default) and this implementation? Why does this implementation require the first number to be bigger?

(mentions: @lewiswatson55, @Shankhalika)