0
To divide a circle into thirteenths, divide it into thirteen equal portions, or pieces.
Divide 2.03369 by 0.047 is 43.27
Divide 3 inches in 5 equal parts
There are a number of things you could call people who divide. You could call the people that divide divorced if they were once married for example.
Divide and conquer is computer science. It is an important algorithm design.