When converting from decimal to binary the mathematical way is simplest. Start with the decimal number you want to convert and start dividing that number by two, keeping track of the remainder after each complete division. Every time you divide by two, you will divide evenly (0) or get a remainder of one (1). Following the pattern to the end, you will get a binary number. Write the remainders in the order they were generated from right to left and the result is the equivalent binary value.
Example: Convert decimal 44 to binary.