Please help me figure this out and understand it :) Please use lots of comments.

Write a C++ function that receives an unsigned integer and returns its binary value. The code should include simple arithmetic functions and modulus. Write a program (in C++) that tests the function. The program should prompt the user input for an unsigned integer and then display the result.

Do not use any "using namespace std" statements, instead use "std::cout", etc. Do not use bitset.

Thanks