12 004 044 937 Form

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It’s Professor Dave; let’s learn how to do long division. After we learned about the concept of multiplication, we had to learn how to multiply not just small numbers together, but also large ones, and we saw some different strategies for how to do this. The same goes for division. Sometimes it’s easy to divide two numbers. Twelve divided by three is clearly four, since four goes into twelve three times. But what about six hundred twenty-four divided by three? Just as there is an algorithm for the multiplication of large numbers, there is one for division as well, and it is called long division. This technique is usually remembered with great disdain from childhood, but if we look carefully, we can see the elegance of this technique, and appreciate the patterns that it reveals. It works just like our multiplication method, simply in reverse. Instead of multiplying one number through the units place of another number, then the tens place, and so forth, we will divide one number b