The rules for division are exactly the same as the rules for
multiplication.
* Division (or multiplication) of a positive number by a
positive number = positive
* Division of a positive number by a negative number =
negative
* Division of a negative number by a positive number =
negative
* Division of a negative number by a negative number =
positive
If you have trouble remembering any of these, just try out a
sample division on any calculator - for instance, if you divide
(-1) / (-1) you get +1.