Why does the remainder after dividing by 2 be 1?

Question

Why when 1 is divided by 2, the remainder is 1

Answer 1

Assume that you have only learned integers, then the quotient of 1 divided by 2 is 0, and the remainder is 1, right? Isn't there nothing wrong with this?

Answer 2

1 % 2 , the modular operation is equal to 1, there is nothing wrong with it