OK, let's crack this. We're given 571 and our task is to multiply it by 40. Essentially, we'll be adding 571 to itself 40 times.
Step 1: 0 + 571 = 571
Step 2: 571 + 571 = 1142
Step 3: 1142 + 571 = 1713
Step 4: 1713 + 571 = 2284
Step 5: 2284 + 571 = 2855
Step 6: 2855 + 571 = 3426
Step 7: 3426 + 571 = 3997
Step 8: 3997 + 571 = 4568
Step 9: 4568 + 571 = 5139
Step 10: 5139 + 571 = 5710
Step 11: 5710 + 571 = 6281
Step 12: 6281 + 571 = 6852
Step 13: 6852 + 571 = 7423
Step 14: 7423 + 571 = 7994
Step 15: 7994 + 571 = 8565
Step 16: 8565 + 571 = 9136
Step 17: 9136 + 571 = 9707
Step 18: 9707 + 571 = 10278
Step 19: 10278 + 571 = 10849
Step 20: 10849 + 571 = 11420
Step 21: 11420 + 571 = 11991
Step 22: 11991 + 571 = 12562
Step 23: 12562 + 571 = 13133
Step 24: 13133 + 571 = 13704
Step 25: 13704 + 571 = 14275
Step 26: 14275 + 571 = 14846
Step 27: 14846 + 571 = 15417
Step 28: 15417 + 571 = 15988
Step 29: 15988 + 571 = 16559
Step 30: 16559 + 571 = 17130
Step 31: 17130 + 571 = 17701
Step 32: 17701 + 571 = 18272
Step 33: 18272 + 571 = 18843
Step 34: 18843 + 571 = 19414
Step 35: 19414 + 571 = 19985
Step 36: 19985 + 571 = 20556
Step 37: 20556 + 571 = 21127
Step 38: 21127 + 571 = 21698
Step 39: 21698 + 571 = 22269
Step 40: 22269 + 571 = 22840

So, 571*40 = 22840