Why are basic facts needed when dividing large numbers?

Well because it's because your dividing large number also when you divide large numbers you need basic facts

Do you mean basic math ... like 2 x 5 and 64/8 and stuff? bc if you are, then its important bc if you dont know basic math then 1. you're going to have a lot of trouble figuring out the answer 2. you're going to take forever solving the problem but, im not saying to not take your time on a question and stuff but most people are impatient to wait for others so they will probably get annoyed and mad at you. There are also a whole lot of other reasons ...