To multiply two numbers by hand takes a few steps but it's something we're taught in school. When dealing with big numbers, really big numbers, we need to a quicker way to do things.

But Anatoly Karatsuba defied the odds, providing a breakthrough with what would come to be known as Karatsuba's Algorithm,a faster, more efficient way to multiply large numbers that would ...

You may want to multiply cells or numbers in Microsoft Excel to analyze data. Here's what you need to know to do it.