Let's get this math done. We have 52 and we're going to multiply it by 20. This is the same as taking 52 and adding it to itself 20 times.
Step 1: 0 + 52 = 52
Step 2: 52 + 52 = 104
Step 3: 104 + 52 = 156
Step 4: 156 + 52 = 208
Step 5: 208 + 52 = 260
Step 6: 260 + 52 = 312
Step 7: 312 + 52 = 364
Step 8: 364 + 52 = 416
Step 9: 416 + 52 = 468
Step 10: 468 + 52 = 520
Step 11: 520 + 52 = 572
Step 12: 572 + 52 = 624
Step 13: 624 + 52 = 676
Step 14: 676 + 52 = 728
Step 15: 728 + 52 = 780
Step 16: 780 + 52 = 832
Step 17: 832 + 52 = 884
Step 18: 884 + 52 = 936
Step 19: 936 + 52 = 988
Step 20: 988 + 52 = 1040

So, 52*20 = 1040