The author 'divides' literature into three categories. [=the author says that there are three categories of literature]
The teacher 'divided' the class (up) into four groups. = The teacher 'divided' (up) the class 'into' four groups.
Two 'divides evenly into' eight. [=eight can be divided into two an exact number of times with nothing left over]
(..) We don't know why these attacks keep happening. But it's irresponsible to label all predators as savages. It's not my Emmitt. We cannot let fear divide us. Please give me back the Zootopia I love. Come on, Hopps. The new mayor wants to see us. The mayor? Why? It would seem you've arrived. (..)2016 Zootopia