OK, let's crack this. We're given 502 and our task is to multiply it by 169. Essentially, we'll be adding 502 to itself 169 times.
Step 1: 0 + 502 = 502
Step 2: 502 + 502 = 1004
Step 3: 1004 + 502 = 1506
Step 4: 1506 + 502 = 2008
Step 5: 2008 + 502 = 2510
Step 6: 2510 + 502 = 3012
Step 7: 3012 + 502 = 3514
Step 8: 3514 + 502 = 4016
Step 9: 4016 + 502 = 4518
Step 10: 4518 + 502 = 5020
Step 11: 5020 + 502 = 5522
Step 12: 5522 + 502 = 6024
Step 13: 6024 + 502 = 6526
Step 14: 6526 + 502 = 7028
Step 15: 7028 + 502 = 7530
Step 16: 7530 + 502 = 8032
Step 17: 8032 + 502 = 8534
Step 18: 8534 + 502 = 9036
Step 19: 9036 + 502 = 9538
Step 20: 9538 + 502 = 10040
Step 21: 10040 + 502 = 10542
Step 22: 10542 + 502 = 11044
Step 23: 11044 + 502 = 11546
Step 24: 11546 + 502 = 12048
Step 25: 12048 + 502 = 12550
Step 26: 12550 + 502 = 13052
Step 27: 13052 + 502 = 13554
Step 28: 13554 + 502 = 14056
Step 29: 14056 + 502 = 14558
Step 30: 14558 + 502 = 15060
Step 31: 15060 + 502 = 15562
Step 32: 15562 + 502 = 16064
Step 33: 16064 + 502 = 16566
Step 34: 16566 + 502 = 17068
Step 35: 17068 + 502 = 17570
Step 36: 17570 + 502 = 18072
Step 37: 18072 + 502 = 18574
Step 38: 18574 + 502 = 19076
Step 39: 19076 + 502 = 19578
Step 40: 19578 + 502 = 20080
Step 41: 20080 + 502 = 20582
Step 42: 20582 + 502 = 21084
Step 43: 21084 + 502 = 21586
Step 44: 21586 + 502 = 22088
Step 45: 22088 + 502 = 22590
Step 46: 22590 + 502 = 23092
Step 47: 23092 + 502 = 23594
Step 48: 23594 + 502 = 24096
Step 49: 24096 + 502 = 24598
Step 50: 24598 + 502 = 25100
Step 51: 25100 + 502 = 25602
Step 52: 25602 + 502 = 26104
Step 53: 26104 + 502 = 26606
Step 54: 26606 + 502 = 27108
Step 55: 27108 + 502 = 27610
Step 56: 27610 + 502 = 28112
Step 57: 28112 + 502 = 28614
Step 58: 28614 + 502 = 29116
Step 59: 29116 + 502 = 29618
Step 60: 29618 + 502 = 30120
Step 61: 30120 + 502 = 30622
Step 62: 30622 + 502 = 31124
Step 63: 31124 + 502 = 31626
Step 64: 31626 + 502 = 32128
Step 65: 32128 + 502 = 32630
Step 66: 32630 + 502 = 33132
Step 67: 33132 + 502 = 33634
Step 68: 33634 + 502 = 34136
Step 69: 34136 + 502 = 34638
Step 70: 34638 + 502 = 35140
Step 71: 35140 + 502 = 35642
Step 72: 35642 + 502 = 36144
Step 73: 36144 + 502 = 36646
Step 74: 36646 + 502 = 37148
Step 75: 37148 + 502 = 37650
Step 76: 37650 + 502 = 38152
Step 77: 38152 + 502 = 38654
Step 78: 38654 + 502 = 39156
Step 79: 39156 + 502 = 39658
Step 80: 39658 + 502 = 40160
Step 81: 40160 + 502 = 40662
Step 82: 40662 + 502 = 41164
Step 83: 41164 + 502 = 41666
Step 84: 41666 + 502 = 42168
Step 85: 42168 + 502 = 42670
Step 86: 42670 + 502 = 43172
Step 87: 43172 + 502 = 43674
Step 88: 43674 + 502 = 44176
Step 89: 44176 + 502 = 44678
Step 90: 44678 + 502 = 45180
Step 91: 45180 + 502 = 45682
Step 92: 45682 + 502 = 46184
Step 93: 46184 + 502 = 46686
Step 94: 46686 + 502 = 47188
Step 95: 47188 + 502 = 47690
Step 96: 47690 + 502 = 48192
Step 97: 48192 + 502 = 48694
Step 98: 48694 + 502 = 49196
Step 99: 49196 + 502 = 49698
Step 100: 49698 + 502 = 50200
Step 101: 50200 + 502 = 50702
Step 102: 50702 + 502 = 51204
Step 103: 51204 + 502 = 51706
Step 104: 51706 + 502 = 52208
Step 105: 52208 + 502 = 52710
Step 106: 52710 + 502 = 53212
Step 107: 53212 + 502 = 53714
Step 108: 53714 + 502 = 54216
Step 109: 54216 + 502 = 54718
Step 110: 54718 + 502 = 55220
Step 111: 55220 + 502 = 55722
Step 112: 55722 + 502 = 56224
Step 113: 56224 + 502 = 56726
Step 114: 56726 + 502 = 57228
Step 115: 57228 + 502 = 57730
Step 116: 57730 + 502 = 58232
Step 117: 58232 + 502 = 58734
Step 118: 58734 + 502 = 59236
Step 119: 59236 + 502 = 59738
Step 120: 59738 + 502 = 60240
Step 121: 60240 + 502 = 60742
Step 122: 60742 + 502 = 61244
Step 123: 61244 + 502 = 61746
Step 124: 61746 + 502 = 62248
Step 125: 62248 + 502 = 62750
Step 126: 62750 + 502 = 63252
Step 127: 63252 + 502 = 63754
Step 128: 63754 + 502 = 64256
Step 129: 64256 + 502 = 64758
Step 130: 64758 + 502 = 65260
Step 131: 65260 + 502 = 65762
Step 132: 65762 + 502 = 66264
Step 133: 66264 + 502 = 66766
Step 134: 66766 + 502 = 67268
Step 135: 67268 + 502 = 67770
Step 136: 67770 + 502 = 68272
Step 137: 68272 + 502 = 68774
Step 138: 68774 + 502 = 69276
Step 139: 69276 + 502 = 69778
Step 140: 69778 + 502 = 70280
Step 141: 70280 + 502 = 70782
Step 142: 70782 + 502 = 71284
Step 143: 71284 + 502 = 71786
Step 144: 71786 + 502 = 72288
Step 145: 72288 + 502 = 72790
Step 146: 72790 + 502 = 73292
Step 147: 73292 + 502 = 73794
Step 148: 73794 + 502 = 74296
Step 149: 74296 + 502 = 74798
Step 150: 74798 + 502 = 75300
Step 151: 75300 + 502 = 75802
Step 152: 75802 + 502 = 76304
Step 153: 76304 + 502 = 76806
Step 154: 76806 + 502 = 77308
Step 155: 77308 + 502 = 77810
Step 156: 77810 + 502 = 78312
Step 157: 78312 + 502 = 78814
Step 158: 78814 + 502 = 79316
Step 159: 79316 + 502 = 79818
Step 160: 79818 + 502 = 80320
Step 161: 80320 + 502 = 80822
Step 162: 80822 + 502 = 81324
Step 163: 81324 + 502 = 81826
Step 164: 81826 + 502 = 82328
Step 165: 82328 + 502 = 82830
Step 166: 82830 + 502 = 83332
Step 167: 83332 + 502 = 83834
Step 168: 83834 + 502 = 84336
Step 169: 84336 + 502 = 84838

So, 502*169 = 84838