Can you rephrase how to use a modulo operator?

Question

The description makes sense, yet it doesn't. I can usr it, but I don't understand it.

Answer 1

m = x - (x // y) * y is the same as m = x % y.

No mention of where you read from. So, difficult to rephrase. I hope the above helps your understanding.

Answer 2

It does. Thank you.