Binary multiplication is a method used to multiply numbers represented in the binary number system, which uses only two digits: 0 and 1. Similar to decimal multiplication, it involves multiplying each digit of one number by each digit of the other, but the calculations are simpler due to the limited digits. The results are then added together to get the final product. To perform binary multiplication, you align the numbers and multiply as you would in decimal. For each digit in the bottom number, you shift the result left for each position, effectively multiplying by powers of 2. Finally, you sum all the shifted results to obtain the final answer.