Let's get this math done. We have 566 and we're going to multiply it by 42. This is the same as taking 566 and adding it to itself 42 times.
Step 1: 0 + 566 = 566
Step 2: 566 + 566 = 1132
Step 3: 1132 + 566 = 1698
Step 4: 1698 + 566 = 2264
Step 5: 2264 + 566 = 2830
Step 6: 2830 + 566 = 3396
Step 7: 3396 + 566 = 3962
Step 8: 3962 + 566 = 4528
Step 9: 4528 + 566 = 5094
Step 10: 5094 + 566 = 5660
Step 11: 5660 + 566 = 6226
Step 12: 6226 + 566 = 6792
Step 13: 6792 + 566 = 7358
Step 14: 7358 + 566 = 7924
Step 15: 7924 + 566 = 8490
Step 16: 8490 + 566 = 9056
Step 17: 9056 + 566 = 9622
Step 18: 9622 + 566 = 10188
Step 19: 10188 + 566 = 10754
Step 20: 10754 + 566 = 11320
Step 21: 11320 + 566 = 11886
Step 22: 11886 + 566 = 12452
Step 23: 12452 + 566 = 13018
Step 24: 13018 + 566 = 13584
Step 25: 13584 + 566 = 14150
Step 26: 14150 + 566 = 14716
Step 27: 14716 + 566 = 15282
Step 28: 15282 + 566 = 15848
Step 29: 15848 + 566 = 16414
Step 30: 16414 + 566 = 16980
Step 31: 16980 + 566 = 17546
Step 32: 17546 + 566 = 18112
Step 33: 18112 + 566 = 18678
Step 34: 18678 + 566 = 19244
Step 35: 19244 + 566 = 19810
Step 36: 19810 + 566 = 20376
Step 37: 20376 + 566 = 20942
Step 38: 20942 + 566 = 21508
Step 39: 21508 + 566 = 22074
Step 40: 22074 + 566 = 22640
Step 41: 22640 + 566 = 23206
Step 42: 23206 + 566 = 23772

So, 566*42 = 23772