In division, what does it mean to decide to drop, include or use the remainder?

Question

In division, what does it mean to decide to drop, include or use the remainder?
Ex: You decide to hang shelves. Each shelf needs 4 brackets.  You have 23 brackets.  How many shelves can you hang/  What do you do with the remainder, drop, include or use and why????

Damon · Answer

23/4 = 5 3/4 well you can hang 5 shelves, but what are you going to do with the REMAINING three brackets? Hang part of a shelf ? I think you might a well DROP them in the waste basket.

Anahya · Answer

U r so dumb for this question

Clementine · Answer

boi, u are weird

Katherine · Answer

Uhh, thanks I guess? It makes sense at least...