Without delay, let's solve this. We've got 617 and we will be multiplying it by 66, that is, adding 617 to itself 66 times.
Step 1: 0 + 617 = 617
Step 2: 617 + 617 = 1234
Step 3: 1234 + 617 = 1851
Step 4: 1851 + 617 = 2468
Step 5: 2468 + 617 = 3085
Step 6: 3085 + 617 = 3702
Step 7: 3702 + 617 = 4319
Step 8: 4319 + 617 = 4936
Step 9: 4936 + 617 = 5553
Step 10: 5553 + 617 = 6170
Step 11: 6170 + 617 = 6787
Step 12: 6787 + 617 = 7404
Step 13: 7404 + 617 = 8021
Step 14: 8021 + 617 = 8638
Step 15: 8638 + 617 = 9255
Step 16: 9255 + 617 = 9872
Step 17: 9872 + 617 = 10489
Step 18: 10489 + 617 = 11106
Step 19: 11106 + 617 = 11723
Step 20: 11723 + 617 = 12340
Step 21: 12340 + 617 = 12957
Step 22: 12957 + 617 = 13574
Step 23: 13574 + 617 = 14191
Step 24: 14191 + 617 = 14808
Step 25: 14808 + 617 = 15425
Step 26: 15425 + 617 = 16042
Step 27: 16042 + 617 = 16659
Step 28: 16659 + 617 = 17276
Step 29: 17276 + 617 = 17893
Step 30: 17893 + 617 = 18510
Step 31: 18510 + 617 = 19127
Step 32: 19127 + 617 = 19744
Step 33: 19744 + 617 = 20361
Step 34: 20361 + 617 = 20978
Step 35: 20978 + 617 = 21595
Step 36: 21595 + 617 = 22212
Step 37: 22212 + 617 = 22829
Step 38: 22829 + 617 = 23446
Step 39: 23446 + 617 = 24063
Step 40: 24063 + 617 = 24680
Step 41: 24680 + 617 = 25297
Step 42: 25297 + 617 = 25914
Step 43: 25914 + 617 = 26531
Step 44: 26531 + 617 = 27148
Step 45: 27148 + 617 = 27765
Step 46: 27765 + 617 = 28382
Step 47: 28382 + 617 = 28999
Step 48: 28999 + 617 = 29616
Step 49: 29616 + 617 = 30233
Step 50: 30233 + 617 = 30850
Step 51: 30850 + 617 = 31467
Step 52: 31467 + 617 = 32084
Step 53: 32084 + 617 = 32701
Step 54: 32701 + 617 = 33318
Step 55: 33318 + 617 = 33935
Step 56: 33935 + 617 = 34552
Step 57: 34552 + 617 = 35169
Step 58: 35169 + 617 = 35786
Step 59: 35786 + 617 = 36403
Step 60: 36403 + 617 = 37020
Step 61: 37020 + 617 = 37637
Step 62: 37637 + 617 = 38254
Step 63: 38254 + 617 = 38871
Step 64: 38871 + 617 = 39488
Step 65: 39488 + 617 = 40105
Step 66: 40105 + 617 = 40722

So, 617*66 = 40722