OK, let's work through this together. We're starting with 337 and we're going to multiply it by 220, which means we add 337 to itself 220 times.
Step 1: 0 + 337 = 337
Step 2: 337 + 337 = 674
Step 3: 674 + 337 = 1011
Step 4: 1011 + 337 = 1348
Step 5: 1348 + 337 = 1685
Step 6: 1685 + 337 = 2022
Step 7: 2022 + 337 = 2359
Step 8: 2359 + 337 = 2696
Step 9: 2696 + 337 = 3033
Step 10: 3033 + 337 = 3370
Step 11: 3370 + 337 = 3707
Step 12: 3707 + 337 = 4044
Step 13: 4044 + 337 = 4381
Step 14: 4381 + 337 = 4718
Step 15: 4718 + 337 = 5055
Step 16: 5055 + 337 = 5392
Step 17: 5392 + 337 = 5729
Step 18: 5729 + 337 = 6066
Step 19: 6066 + 337 = 6403
Step 20: 6403 + 337 = 6740
Step 21: 6740 + 337 = 7077
Step 22: 7077 + 337 = 7414
Step 23: 7414 + 337 = 7751
Step 24: 7751 + 337 = 8088
Step 25: 8088 + 337 = 8425
Step 26: 8425 + 337 = 8762
Step 27: 8762 + 337 = 9099
Step 28: 9099 + 337 = 9436
Step 29: 9436 + 337 = 9773
Step 30: 9773 + 337 = 10110
Step 31: 10110 + 337 = 10447
Step 32: 10447 + 337 = 10784
Step 33: 10784 + 337 = 11121
Step 34: 11121 + 337 = 11458
Step 35: 11458 + 337 = 11795
Step 36: 11795 + 337 = 12132
Step 37: 12132 + 337 = 12469
Step 38: 12469 + 337 = 12806
Step 39: 12806 + 337 = 13143
Step 40: 13143 + 337 = 13480
Step 41: 13480 + 337 = 13817
Step 42: 13817 + 337 = 14154
Step 43: 14154 + 337 = 14491
Step 44: 14491 + 337 = 14828
Step 45: 14828 + 337 = 15165
Step 46: 15165 + 337 = 15502
Step 47: 15502 + 337 = 15839
Step 48: 15839 + 337 = 16176
Step 49: 16176 + 337 = 16513
Step 50: 16513 + 337 = 16850
Step 51: 16850 + 337 = 17187
Step 52: 17187 + 337 = 17524
Step 53: 17524 + 337 = 17861
Step 54: 17861 + 337 = 18198
Step 55: 18198 + 337 = 18535
Step 56: 18535 + 337 = 18872
Step 57: 18872 + 337 = 19209
Step 58: 19209 + 337 = 19546
Step 59: 19546 + 337 = 19883
Step 60: 19883 + 337 = 20220
Step 61: 20220 + 337 = 20557
Step 62: 20557 + 337 = 20894
Step 63: 20894 + 337 = 21231
Step 64: 21231 + 337 = 21568
Step 65: 21568 + 337 = 21905
Step 66: 21905 + 337 = 22242
Step 67: 22242 + 337 = 22579
Step 68: 22579 + 337 = 22916
Step 69: 22916 + 337 = 23253
Step 70: 23253 + 337 = 23590
Step 71: 23590 + 337 = 23927
Step 72: 23927 + 337 = 24264
Step 73: 24264 + 337 = 24601
Step 74: 24601 + 337 = 24938
Step 75: 24938 + 337 = 25275
Step 76: 25275 + 337 = 25612
Step 77: 25612 + 337 = 25949
Step 78: 25949 + 337 = 26286
Step 79: 26286 + 337 = 26623
Step 80: 26623 + 337 = 26960
Step 81: 26960 + 337 = 27297
Step 82: 27297 + 337 = 27634
Step 83: 27634 + 337 = 27971
Step 84: 27971 + 337 = 28308
Step 85: 28308 + 337 = 28645
Step 86: 28645 + 337 = 28982
Step 87: 28982 + 337 = 29319
Step 88: 29319 + 337 = 29656
Step 89: 29656 + 337 = 29993
Step 90: 29993 + 337 = 30330
Step 91: 30330 + 337 = 30667
Step 92: 30667 + 337 = 31004
Step 93: 31004 + 337 = 31341
Step 94: 31341 + 337 = 31678
Step 95: 31678 + 337 = 32015
Step 96: 32015 + 337 = 32352
Step 97: 32352 + 337 = 32689
Step 98: 32689 + 337 = 33026
Step 99: 33026 + 337 = 33363
Step 100: 33363 + 337 = 33700
Step 101: 33700 + 337 = 34037
Step 102: 34037 + 337 = 34374
Step 103: 34374 + 337 = 34711
Step 104: 34711 + 337 = 35048
Step 105: 35048 + 337 = 35385
Step 106: 35385 + 337 = 35722
Step 107: 35722 + 337 = 36059
Step 108: 36059 + 337 = 36396
Step 109: 36396 + 337 = 36733
Step 110: 36733 + 337 = 37070
Step 111: 37070 + 337 = 37407
Step 112: 37407 + 337 = 37744
Step 113: 37744 + 337 = 38081
Step 114: 38081 + 337 = 38418
Step 115: 38418 + 337 = 38755
Step 116: 38755 + 337 = 39092
Step 117: 39092 + 337 = 39429
Step 118: 39429 + 337 = 39766
Step 119: 39766 + 337 = 40103
Step 120: 40103 + 337 = 40440
Step 121: 40440 + 337 = 40777
Step 122: 40777 + 337 = 41114
Step 123: 41114 + 337 = 41451
Step 124: 41451 + 337 = 41788
Step 125: 41788 + 337 = 42125
Step 126: 42125 + 337 = 42462
Step 127: 42462 + 337 = 42799
Step 128: 42799 + 337 = 43136
Step 129: 43136 + 337 = 43473
Step 130: 43473 + 337 = 43810
Step 131: 43810 + 337 = 44147
Step 132: 44147 + 337 = 44484
Step 133: 44484 + 337 = 44821
Step 134: 44821 + 337 = 45158
Step 135: 45158 + 337 = 45495
Step 136: 45495 + 337 = 45832
Step 137: 45832 + 337 = 46169
Step 138: 46169 + 337 = 46506
Step 139: 46506 + 337 = 46843
Step 140: 46843 + 337 = 47180
Step 141: 47180 + 337 = 47517
Step 142: 47517 + 337 = 47854
Step 143: 47854 + 337 = 48191
Step 144: 48191 + 337 = 48528
Step 145: 48528 + 337 = 48865
Step 146: 48865 + 337 = 49202
Step 147: 49202 + 337 = 49539
Step 148: 49539 + 337 = 49876
Step 149: 49876 + 337 = 50213
Step 150: 50213 + 337 = 50550
Step 151: 50550 + 337 = 50887
Step 152: 50887 + 337 = 51224
Step 153: 51224 + 337 = 51561
Step 154: 51561 + 337 = 51898
Step 155: 51898 + 337 = 52235
Step 156: 52235 + 337 = 52572
Step 157: 52572 + 337 = 52909
Step 158: 52909 + 337 = 53246
Step 159: 53246 + 337 = 53583
Step 160: 53583 + 337 = 53920
Step 161: 53920 + 337 = 54257
Step 162: 54257 + 337 = 54594
Step 163: 54594 + 337 = 54931
Step 164: 54931 + 337 = 55268
Step 165: 55268 + 337 = 55605
Step 166: 55605 + 337 = 55942
Step 167: 55942 + 337 = 56279
Step 168: 56279 + 337 = 56616
Step 169: 56616 + 337 = 56953
Step 170: 56953 + 337 = 57290
Step 171: 57290 + 337 = 57627
Step 172: 57627 + 337 = 57964
Step 173: 57964 + 337 = 58301
Step 174: 58301 + 337 = 58638
Step 175: 58638 + 337 = 58975
Step 176: 58975 + 337 = 59312
Step 177: 59312 + 337 = 59649
Step 178: 59649 + 337 = 59986
Step 179: 59986 + 337 = 60323
Step 180: 60323 + 337 = 60660
Step 181: 60660 + 337 = 60997
Step 182: 60997 + 337 = 61334
Step 183: 61334 + 337 = 61671
Step 184: 61671 + 337 = 62008
Step 185: 62008 + 337 = 62345
Step 186: 62345 + 337 = 62682
Step 187: 62682 + 337 = 63019
Step 188: 63019 + 337 = 63356
Step 189: 63356 + 337 = 63693
Step 190: 63693 + 337 = 64030
Step 191: 64030 + 337 = 64367
Step 192: 64367 + 337 = 64704
Step 193: 64704 + 337 = 65041
Step 194: 65041 + 337 = 65378
Step 195: 65378 + 337 = 65715
Step 196: 65715 + 337 = 66052
Step 197: 66052 + 337 = 66389
Step 198: 66389 + 337 = 66726
Step 199: 66726 + 337 = 67063
Step 200: 67063 + 337 = 67400
Step 201: 67400 + 337 = 67737
Step 202: 67737 + 337 = 68074
Step 203: 68074 + 337 = 68411
Step 204: 68411 + 337 = 68748
Step 205: 68748 + 337 = 69085
Step 206: 69085 + 337 = 69422
Step 207: 69422 + 337 = 69759
Step 208: 69759 + 337 = 70096
Step 209: 70096 + 337 = 70433
Step 210: 70433 + 337 = 70770
Step 211: 70770 + 337 = 71107
Step 212: 71107 + 337 = 71444
Step 213: 71444 + 337 = 71781
Step 214: 71781 + 337 = 72118
Step 215: 72118 + 337 = 72455
Step 216: 72455 + 337 = 72792
Step 217: 72792 + 337 = 73129
Step 218: 73129 + 337 = 73466
Step 219: 73466 + 337 = 73803
Step 220: 73803 + 337 = 74140

So, 337*220 = 74140