# Convert Decimal Numbers to Binary Numbers

We use the modulo and division method, and we calculate the binary representation of a decimal number. Let’s represent the binary by considering the remainder column from bottom to top.

In the kth bit set/unset problem, we first write the algorithm, then some pseudocode, and then implement the solution.

This problem is similar to the last lesson we discussed. If you need a clue, return to the previous lesson to further your understanding.

In the kth bit set/unset problem, we need to write a program that checks whether the kth bit of a number is 1 or 0.