Example: "The apportionment of seats in the house of representatives is based on the relative population of each state"
To divide and distribute portions of a whole.
Example: "The controlling party had apportioned the voting districts such that their party would be favored in the next election."
Specifically, to do so in a fair and equitable manner; to allocate proportionally.
Example: "The children were required to dump all of their halloween candy on the table so that their parents could apportion it among them."