Without delay, let's solve this. We've got 612 and we will be multiplying it by 172, that is, adding 612 to itself 172 times.
Step 1: 0 + 612 = 612
Step 2: 612 + 612 = 1224
Step 3: 1224 + 612 = 1836
Step 4: 1836 + 612 = 2448
Step 5: 2448 + 612 = 3060
Step 6: 3060 + 612 = 3672
Step 7: 3672 + 612 = 4284
Step 8: 4284 + 612 = 4896
Step 9: 4896 + 612 = 5508
Step 10: 5508 + 612 = 6120
Step 11: 6120 + 612 = 6732
Step 12: 6732 + 612 = 7344
Step 13: 7344 + 612 = 7956
Step 14: 7956 + 612 = 8568
Step 15: 8568 + 612 = 9180
Step 16: 9180 + 612 = 9792
Step 17: 9792 + 612 = 10404
Step 18: 10404 + 612 = 11016
Step 19: 11016 + 612 = 11628
Step 20: 11628 + 612 = 12240
Step 21: 12240 + 612 = 12852
Step 22: 12852 + 612 = 13464
Step 23: 13464 + 612 = 14076
Step 24: 14076 + 612 = 14688
Step 25: 14688 + 612 = 15300
Step 26: 15300 + 612 = 15912
Step 27: 15912 + 612 = 16524
Step 28: 16524 + 612 = 17136
Step 29: 17136 + 612 = 17748
Step 30: 17748 + 612 = 18360
Step 31: 18360 + 612 = 18972
Step 32: 18972 + 612 = 19584
Step 33: 19584 + 612 = 20196
Step 34: 20196 + 612 = 20808
Step 35: 20808 + 612 = 21420
Step 36: 21420 + 612 = 22032
Step 37: 22032 + 612 = 22644
Step 38: 22644 + 612 = 23256
Step 39: 23256 + 612 = 23868
Step 40: 23868 + 612 = 24480
Step 41: 24480 + 612 = 25092
Step 42: 25092 + 612 = 25704
Step 43: 25704 + 612 = 26316
Step 44: 26316 + 612 = 26928
Step 45: 26928 + 612 = 27540
Step 46: 27540 + 612 = 28152
Step 47: 28152 + 612 = 28764
Step 48: 28764 + 612 = 29376
Step 49: 29376 + 612 = 29988
Step 50: 29988 + 612 = 30600
Step 51: 30600 + 612 = 31212
Step 52: 31212 + 612 = 31824
Step 53: 31824 + 612 = 32436
Step 54: 32436 + 612 = 33048
Step 55: 33048 + 612 = 33660
Step 56: 33660 + 612 = 34272
Step 57: 34272 + 612 = 34884
Step 58: 34884 + 612 = 35496
Step 59: 35496 + 612 = 36108
Step 60: 36108 + 612 = 36720
Step 61: 36720 + 612 = 37332
Step 62: 37332 + 612 = 37944
Step 63: 37944 + 612 = 38556
Step 64: 38556 + 612 = 39168
Step 65: 39168 + 612 = 39780
Step 66: 39780 + 612 = 40392
Step 67: 40392 + 612 = 41004
Step 68: 41004 + 612 = 41616
Step 69: 41616 + 612 = 42228
Step 70: 42228 + 612 = 42840
Step 71: 42840 + 612 = 43452
Step 72: 43452 + 612 = 44064
Step 73: 44064 + 612 = 44676
Step 74: 44676 + 612 = 45288
Step 75: 45288 + 612 = 45900
Step 76: 45900 + 612 = 46512
Step 77: 46512 + 612 = 47124
Step 78: 47124 + 612 = 47736
Step 79: 47736 + 612 = 48348
Step 80: 48348 + 612 = 48960
Step 81: 48960 + 612 = 49572
Step 82: 49572 + 612 = 50184
Step 83: 50184 + 612 = 50796
Step 84: 50796 + 612 = 51408
Step 85: 51408 + 612 = 52020
Step 86: 52020 + 612 = 52632
Step 87: 52632 + 612 = 53244
Step 88: 53244 + 612 = 53856
Step 89: 53856 + 612 = 54468
Step 90: 54468 + 612 = 55080
Step 91: 55080 + 612 = 55692
Step 92: 55692 + 612 = 56304
Step 93: 56304 + 612 = 56916
Step 94: 56916 + 612 = 57528
Step 95: 57528 + 612 = 58140
Step 96: 58140 + 612 = 58752
Step 97: 58752 + 612 = 59364
Step 98: 59364 + 612 = 59976
Step 99: 59976 + 612 = 60588
Step 100: 60588 + 612 = 61200
Step 101: 61200 + 612 = 61812
Step 102: 61812 + 612 = 62424
Step 103: 62424 + 612 = 63036
Step 104: 63036 + 612 = 63648
Step 105: 63648 + 612 = 64260
Step 106: 64260 + 612 = 64872
Step 107: 64872 + 612 = 65484
Step 108: 65484 + 612 = 66096
Step 109: 66096 + 612 = 66708
Step 110: 66708 + 612 = 67320
Step 111: 67320 + 612 = 67932
Step 112: 67932 + 612 = 68544
Step 113: 68544 + 612 = 69156
Step 114: 69156 + 612 = 69768
Step 115: 69768 + 612 = 70380
Step 116: 70380 + 612 = 70992
Step 117: 70992 + 612 = 71604
Step 118: 71604 + 612 = 72216
Step 119: 72216 + 612 = 72828
Step 120: 72828 + 612 = 73440
Step 121: 73440 + 612 = 74052
Step 122: 74052 + 612 = 74664
Step 123: 74664 + 612 = 75276
Step 124: 75276 + 612 = 75888
Step 125: 75888 + 612 = 76500
Step 126: 76500 + 612 = 77112
Step 127: 77112 + 612 = 77724
Step 128: 77724 + 612 = 78336
Step 129: 78336 + 612 = 78948
Step 130: 78948 + 612 = 79560
Step 131: 79560 + 612 = 80172
Step 132: 80172 + 612 = 80784
Step 133: 80784 + 612 = 81396
Step 134: 81396 + 612 = 82008
Step 135: 82008 + 612 = 82620
Step 136: 82620 + 612 = 83232
Step 137: 83232 + 612 = 83844
Step 138: 83844 + 612 = 84456
Step 139: 84456 + 612 = 85068
Step 140: 85068 + 612 = 85680
Step 141: 85680 + 612 = 86292
Step 142: 86292 + 612 = 86904
Step 143: 86904 + 612 = 87516
Step 144: 87516 + 612 = 88128
Step 145: 88128 + 612 = 88740
Step 146: 88740 + 612 = 89352
Step 147: 89352 + 612 = 89964
Step 148: 89964 + 612 = 90576
Step 149: 90576 + 612 = 91188
Step 150: 91188 + 612 = 91800
Step 151: 91800 + 612 = 92412
Step 152: 92412 + 612 = 93024
Step 153: 93024 + 612 = 93636
Step 154: 93636 + 612 = 94248
Step 155: 94248 + 612 = 94860
Step 156: 94860 + 612 = 95472
Step 157: 95472 + 612 = 96084
Step 158: 96084 + 612 = 96696
Step 159: 96696 + 612 = 97308
Step 160: 97308 + 612 = 97920
Step 161: 97920 + 612 = 98532
Step 162: 98532 + 612 = 99144
Step 163: 99144 + 612 = 99756
Step 164: 99756 + 612 = 100368
Step 165: 100368 + 612 = 100980
Step 166: 100980 + 612 = 101592
Step 167: 101592 + 612 = 102204
Step 168: 102204 + 612 = 102816
Step 169: 102816 + 612 = 103428
Step 170: 103428 + 612 = 104040
Step 171: 104040 + 612 = 104652
Step 172: 104652 + 612 = 105264

So, 612*172 = 105264