3, with 15 left over
Oh, dude, you're hitting me with some math here? Like, okay, let me think for a sec. So, 21 can go into 170 like around 8 times. But hey, don't quote me on that, I'm just here for the jokes, not the math!
It goes in 99/5 times.
59 times.
0.625 times.
4 times