Let's get this math done. We have 570 and we're going to multiply it by 13. This is the same as taking 570 and adding it to itself 13 times.
Step 1: 0 + 570 = 570
Step 2: 570 + 570 = 1140
Step 3: 1140 + 570 = 1710
Step 4: 1710 + 570 = 2280
Step 5: 2280 + 570 = 2850
Step 6: 2850 + 570 = 3420
Step 7: 3420 + 570 = 3990
Step 8: 3990 + 570 = 4560
Step 9: 4560 + 570 = 5130
Step 10: 5130 + 570 = 5700
Step 11: 5700 + 570 = 6270
Step 12: 6270 + 570 = 6840
Step 13: 6840 + 570 = 7410

So, 570*13 = 7410