3312/48 how many times can 3312 go in 48? 0 right? so u put another 0 right next to 48 like 480 it still cant fit so u put another 0 4800, it can fit one time right? so u put one on top of the line on 4800 and subtract 4800-3312=1488. then, u cant fit the 3312 into 1488. so u add another 0 just keep adding 0s till u get ur answer.