Let's get this math done. We have 252 and we're going to multiply it by 171. This is the same as taking 252 and adding it to itself 171 times.
Step 1: 0 + 252 = 252
Step 2: 252 + 252 = 504
Step 3: 504 + 252 = 756
Step 4: 756 + 252 = 1008
Step 5: 1008 + 252 = 1260
Step 6: 1260 + 252 = 1512
Step 7: 1512 + 252 = 1764
Step 8: 1764 + 252 = 2016
Step 9: 2016 + 252 = 2268
Step 10: 2268 + 252 = 2520
Step 11: 2520 + 252 = 2772
Step 12: 2772 + 252 = 3024
Step 13: 3024 + 252 = 3276
Step 14: 3276 + 252 = 3528
Step 15: 3528 + 252 = 3780
Step 16: 3780 + 252 = 4032
Step 17: 4032 + 252 = 4284
Step 18: 4284 + 252 = 4536
Step 19: 4536 + 252 = 4788
Step 20: 4788 + 252 = 5040
Step 21: 5040 + 252 = 5292
Step 22: 5292 + 252 = 5544
Step 23: 5544 + 252 = 5796
Step 24: 5796 + 252 = 6048
Step 25: 6048 + 252 = 6300
Step 26: 6300 + 252 = 6552
Step 27: 6552 + 252 = 6804
Step 28: 6804 + 252 = 7056
Step 29: 7056 + 252 = 7308
Step 30: 7308 + 252 = 7560
Step 31: 7560 + 252 = 7812
Step 32: 7812 + 252 = 8064
Step 33: 8064 + 252 = 8316
Step 34: 8316 + 252 = 8568
Step 35: 8568 + 252 = 8820
Step 36: 8820 + 252 = 9072
Step 37: 9072 + 252 = 9324
Step 38: 9324 + 252 = 9576
Step 39: 9576 + 252 = 9828
Step 40: 9828 + 252 = 10080
Step 41: 10080 + 252 = 10332
Step 42: 10332 + 252 = 10584
Step 43: 10584 + 252 = 10836
Step 44: 10836 + 252 = 11088
Step 45: 11088 + 252 = 11340
Step 46: 11340 + 252 = 11592
Step 47: 11592 + 252 = 11844
Step 48: 11844 + 252 = 12096
Step 49: 12096 + 252 = 12348
Step 50: 12348 + 252 = 12600
Step 51: 12600 + 252 = 12852
Step 52: 12852 + 252 = 13104
Step 53: 13104 + 252 = 13356
Step 54: 13356 + 252 = 13608
Step 55: 13608 + 252 = 13860
Step 56: 13860 + 252 = 14112
Step 57: 14112 + 252 = 14364
Step 58: 14364 + 252 = 14616
Step 59: 14616 + 252 = 14868
Step 60: 14868 + 252 = 15120
Step 61: 15120 + 252 = 15372
Step 62: 15372 + 252 = 15624
Step 63: 15624 + 252 = 15876
Step 64: 15876 + 252 = 16128
Step 65: 16128 + 252 = 16380
Step 66: 16380 + 252 = 16632
Step 67: 16632 + 252 = 16884
Step 68: 16884 + 252 = 17136
Step 69: 17136 + 252 = 17388
Step 70: 17388 + 252 = 17640
Step 71: 17640 + 252 = 17892
Step 72: 17892 + 252 = 18144
Step 73: 18144 + 252 = 18396
Step 74: 18396 + 252 = 18648
Step 75: 18648 + 252 = 18900
Step 76: 18900 + 252 = 19152
Step 77: 19152 + 252 = 19404
Step 78: 19404 + 252 = 19656
Step 79: 19656 + 252 = 19908
Step 80: 19908 + 252 = 20160
Step 81: 20160 + 252 = 20412
Step 82: 20412 + 252 = 20664
Step 83: 20664 + 252 = 20916
Step 84: 20916 + 252 = 21168
Step 85: 21168 + 252 = 21420
Step 86: 21420 + 252 = 21672
Step 87: 21672 + 252 = 21924
Step 88: 21924 + 252 = 22176
Step 89: 22176 + 252 = 22428
Step 90: 22428 + 252 = 22680
Step 91: 22680 + 252 = 22932
Step 92: 22932 + 252 = 23184
Step 93: 23184 + 252 = 23436
Step 94: 23436 + 252 = 23688
Step 95: 23688 + 252 = 23940
Step 96: 23940 + 252 = 24192
Step 97: 24192 + 252 = 24444
Step 98: 24444 + 252 = 24696
Step 99: 24696 + 252 = 24948
Step 100: 24948 + 252 = 25200
Step 101: 25200 + 252 = 25452
Step 102: 25452 + 252 = 25704
Step 103: 25704 + 252 = 25956
Step 104: 25956 + 252 = 26208
Step 105: 26208 + 252 = 26460
Step 106: 26460 + 252 = 26712
Step 107: 26712 + 252 = 26964
Step 108: 26964 + 252 = 27216
Step 109: 27216 + 252 = 27468
Step 110: 27468 + 252 = 27720
Step 111: 27720 + 252 = 27972
Step 112: 27972 + 252 = 28224
Step 113: 28224 + 252 = 28476
Step 114: 28476 + 252 = 28728
Step 115: 28728 + 252 = 28980
Step 116: 28980 + 252 = 29232
Step 117: 29232 + 252 = 29484
Step 118: 29484 + 252 = 29736
Step 119: 29736 + 252 = 29988
Step 120: 29988 + 252 = 30240
Step 121: 30240 + 252 = 30492
Step 122: 30492 + 252 = 30744
Step 123: 30744 + 252 = 30996
Step 124: 30996 + 252 = 31248
Step 125: 31248 + 252 = 31500
Step 126: 31500 + 252 = 31752
Step 127: 31752 + 252 = 32004
Step 128: 32004 + 252 = 32256
Step 129: 32256 + 252 = 32508
Step 130: 32508 + 252 = 32760
Step 131: 32760 + 252 = 33012
Step 132: 33012 + 252 = 33264
Step 133: 33264 + 252 = 33516
Step 134: 33516 + 252 = 33768
Step 135: 33768 + 252 = 34020
Step 136: 34020 + 252 = 34272
Step 137: 34272 + 252 = 34524
Step 138: 34524 + 252 = 34776
Step 139: 34776 + 252 = 35028
Step 140: 35028 + 252 = 35280
Step 141: 35280 + 252 = 35532
Step 142: 35532 + 252 = 35784
Step 143: 35784 + 252 = 36036
Step 144: 36036 + 252 = 36288
Step 145: 36288 + 252 = 36540
Step 146: 36540 + 252 = 36792
Step 147: 36792 + 252 = 37044
Step 148: 37044 + 252 = 37296
Step 149: 37296 + 252 = 37548
Step 150: 37548 + 252 = 37800
Step 151: 37800 + 252 = 38052
Step 152: 38052 + 252 = 38304
Step 153: 38304 + 252 = 38556
Step 154: 38556 + 252 = 38808
Step 155: 38808 + 252 = 39060
Step 156: 39060 + 252 = 39312
Step 157: 39312 + 252 = 39564
Step 158: 39564 + 252 = 39816
Step 159: 39816 + 252 = 40068
Step 160: 40068 + 252 = 40320
Step 161: 40320 + 252 = 40572
Step 162: 40572 + 252 = 40824
Step 163: 40824 + 252 = 41076
Step 164: 41076 + 252 = 41328
Step 165: 41328 + 252 = 41580
Step 166: 41580 + 252 = 41832
Step 167: 41832 + 252 = 42084
Step 168: 42084 + 252 = 42336
Step 169: 42336 + 252 = 42588
Step 170: 42588 + 252 = 42840
Step 171: 42840 + 252 = 43092

So, 252*171 = 43092