Let's roll up our sleeves and solve this. We have 524 and we're going to multiply it by 215, essentially adding 524 to itself 215 times.
Step 1: 0 + 524 = 524
Step 2: 524 + 524 = 1048
Step 3: 1048 + 524 = 1572
Step 4: 1572 + 524 = 2096
Step 5: 2096 + 524 = 2620
Step 6: 2620 + 524 = 3144
Step 7: 3144 + 524 = 3668
Step 8: 3668 + 524 = 4192
Step 9: 4192 + 524 = 4716
Step 10: 4716 + 524 = 5240
Step 11: 5240 + 524 = 5764
Step 12: 5764 + 524 = 6288
Step 13: 6288 + 524 = 6812
Step 14: 6812 + 524 = 7336
Step 15: 7336 + 524 = 7860
Step 16: 7860 + 524 = 8384
Step 17: 8384 + 524 = 8908
Step 18: 8908 + 524 = 9432
Step 19: 9432 + 524 = 9956
Step 20: 9956 + 524 = 10480
Step 21: 10480 + 524 = 11004
Step 22: 11004 + 524 = 11528
Step 23: 11528 + 524 = 12052
Step 24: 12052 + 524 = 12576
Step 25: 12576 + 524 = 13100
Step 26: 13100 + 524 = 13624
Step 27: 13624 + 524 = 14148
Step 28: 14148 + 524 = 14672
Step 29: 14672 + 524 = 15196
Step 30: 15196 + 524 = 15720
Step 31: 15720 + 524 = 16244
Step 32: 16244 + 524 = 16768
Step 33: 16768 + 524 = 17292
Step 34: 17292 + 524 = 17816
Step 35: 17816 + 524 = 18340
Step 36: 18340 + 524 = 18864
Step 37: 18864 + 524 = 19388
Step 38: 19388 + 524 = 19912
Step 39: 19912 + 524 = 20436
Step 40: 20436 + 524 = 20960
Step 41: 20960 + 524 = 21484
Step 42: 21484 + 524 = 22008
Step 43: 22008 + 524 = 22532
Step 44: 22532 + 524 = 23056
Step 45: 23056 + 524 = 23580
Step 46: 23580 + 524 = 24104
Step 47: 24104 + 524 = 24628
Step 48: 24628 + 524 = 25152
Step 49: 25152 + 524 = 25676
Step 50: 25676 + 524 = 26200
Step 51: 26200 + 524 = 26724
Step 52: 26724 + 524 = 27248
Step 53: 27248 + 524 = 27772
Step 54: 27772 + 524 = 28296
Step 55: 28296 + 524 = 28820
Step 56: 28820 + 524 = 29344
Step 57: 29344 + 524 = 29868
Step 58: 29868 + 524 = 30392
Step 59: 30392 + 524 = 30916
Step 60: 30916 + 524 = 31440
Step 61: 31440 + 524 = 31964
Step 62: 31964 + 524 = 32488
Step 63: 32488 + 524 = 33012
Step 64: 33012 + 524 = 33536
Step 65: 33536 + 524 = 34060
Step 66: 34060 + 524 = 34584
Step 67: 34584 + 524 = 35108
Step 68: 35108 + 524 = 35632
Step 69: 35632 + 524 = 36156
Step 70: 36156 + 524 = 36680
Step 71: 36680 + 524 = 37204
Step 72: 37204 + 524 = 37728
Step 73: 37728 + 524 = 38252
Step 74: 38252 + 524 = 38776
Step 75: 38776 + 524 = 39300
Step 76: 39300 + 524 = 39824
Step 77: 39824 + 524 = 40348
Step 78: 40348 + 524 = 40872
Step 79: 40872 + 524 = 41396
Step 80: 41396 + 524 = 41920
Step 81: 41920 + 524 = 42444
Step 82: 42444 + 524 = 42968
Step 83: 42968 + 524 = 43492
Step 84: 43492 + 524 = 44016
Step 85: 44016 + 524 = 44540
Step 86: 44540 + 524 = 45064
Step 87: 45064 + 524 = 45588
Step 88: 45588 + 524 = 46112
Step 89: 46112 + 524 = 46636
Step 90: 46636 + 524 = 47160
Step 91: 47160 + 524 = 47684
Step 92: 47684 + 524 = 48208
Step 93: 48208 + 524 = 48732
Step 94: 48732 + 524 = 49256
Step 95: 49256 + 524 = 49780
Step 96: 49780 + 524 = 50304
Step 97: 50304 + 524 = 50828
Step 98: 50828 + 524 = 51352
Step 99: 51352 + 524 = 51876
Step 100: 51876 + 524 = 52400
Step 101: 52400 + 524 = 52924
Step 102: 52924 + 524 = 53448
Step 103: 53448 + 524 = 53972
Step 104: 53972 + 524 = 54496
Step 105: 54496 + 524 = 55020
Step 106: 55020 + 524 = 55544
Step 107: 55544 + 524 = 56068
Step 108: 56068 + 524 = 56592
Step 109: 56592 + 524 = 57116
Step 110: 57116 + 524 = 57640
Step 111: 57640 + 524 = 58164
Step 112: 58164 + 524 = 58688
Step 113: 58688 + 524 = 59212
Step 114: 59212 + 524 = 59736
Step 115: 59736 + 524 = 60260
Step 116: 60260 + 524 = 60784
Step 117: 60784 + 524 = 61308
Step 118: 61308 + 524 = 61832
Step 119: 61832 + 524 = 62356
Step 120: 62356 + 524 = 62880
Step 121: 62880 + 524 = 63404
Step 122: 63404 + 524 = 63928
Step 123: 63928 + 524 = 64452
Step 124: 64452 + 524 = 64976
Step 125: 64976 + 524 = 65500
Step 126: 65500 + 524 = 66024
Step 127: 66024 + 524 = 66548
Step 128: 66548 + 524 = 67072
Step 129: 67072 + 524 = 67596
Step 130: 67596 + 524 = 68120
Step 131: 68120 + 524 = 68644
Step 132: 68644 + 524 = 69168
Step 133: 69168 + 524 = 69692
Step 134: 69692 + 524 = 70216
Step 135: 70216 + 524 = 70740
Step 136: 70740 + 524 = 71264
Step 137: 71264 + 524 = 71788
Step 138: 71788 + 524 = 72312
Step 139: 72312 + 524 = 72836
Step 140: 72836 + 524 = 73360
Step 141: 73360 + 524 = 73884
Step 142: 73884 + 524 = 74408
Step 143: 74408 + 524 = 74932
Step 144: 74932 + 524 = 75456
Step 145: 75456 + 524 = 75980
Step 146: 75980 + 524 = 76504
Step 147: 76504 + 524 = 77028
Step 148: 77028 + 524 = 77552
Step 149: 77552 + 524 = 78076
Step 150: 78076 + 524 = 78600
Step 151: 78600 + 524 = 79124
Step 152: 79124 + 524 = 79648
Step 153: 79648 + 524 = 80172
Step 154: 80172 + 524 = 80696
Step 155: 80696 + 524 = 81220
Step 156: 81220 + 524 = 81744
Step 157: 81744 + 524 = 82268
Step 158: 82268 + 524 = 82792
Step 159: 82792 + 524 = 83316
Step 160: 83316 + 524 = 83840
Step 161: 83840 + 524 = 84364
Step 162: 84364 + 524 = 84888
Step 163: 84888 + 524 = 85412
Step 164: 85412 + 524 = 85936
Step 165: 85936 + 524 = 86460
Step 166: 86460 + 524 = 86984
Step 167: 86984 + 524 = 87508
Step 168: 87508 + 524 = 88032
Step 169: 88032 + 524 = 88556
Step 170: 88556 + 524 = 89080
Step 171: 89080 + 524 = 89604
Step 172: 89604 + 524 = 90128
Step 173: 90128 + 524 = 90652
Step 174: 90652 + 524 = 91176
Step 175: 91176 + 524 = 91700
Step 176: 91700 + 524 = 92224
Step 177: 92224 + 524 = 92748
Step 178: 92748 + 524 = 93272
Step 179: 93272 + 524 = 93796
Step 180: 93796 + 524 = 94320
Step 181: 94320 + 524 = 94844
Step 182: 94844 + 524 = 95368
Step 183: 95368 + 524 = 95892
Step 184: 95892 + 524 = 96416
Step 185: 96416 + 524 = 96940
Step 186: 96940 + 524 = 97464
Step 187: 97464 + 524 = 97988
Step 188: 97988 + 524 = 98512
Step 189: 98512 + 524 = 99036
Step 190: 99036 + 524 = 99560
Step 191: 99560 + 524 = 100084
Step 192: 100084 + 524 = 100608
Step 193: 100608 + 524 = 101132
Step 194: 101132 + 524 = 101656
Step 195: 101656 + 524 = 102180
Step 196: 102180 + 524 = 102704
Step 197: 102704 + 524 = 103228
Step 198: 103228 + 524 = 103752
Step 199: 103752 + 524 = 104276
Step 200: 104276 + 524 = 104800
Step 201: 104800 + 524 = 105324
Step 202: 105324 + 524 = 105848
Step 203: 105848 + 524 = 106372
Step 204: 106372 + 524 = 106896
Step 205: 106896 + 524 = 107420
Step 206: 107420 + 524 = 107944
Step 207: 107944 + 524 = 108468
Step 208: 108468 + 524 = 108992
Step 209: 108992 + 524 = 109516
Step 210: 109516 + 524 = 110040
Step 211: 110040 + 524 = 110564
Step 212: 110564 + 524 = 111088
Step 213: 111088 + 524 = 111612
Step 214: 111612 + 524 = 112136
Step 215: 112136 + 524 = 112660

So, 524*215 = 112660