Oh, dude, you're hitting me with the math questions right off the bat? Okay, okay, let me break out my calculator... So, 5600 divided by 80 is 70. There you go, math wizardry at its finest.
5600/7 = 800.
7
5.6
700
70
0.0005
70 x 80 = 5600
5600 !
2.8
70 times
80 x 70 = 5600 - 35 = 5565