Let's get this math done. We have 354 and we're going to multiply it by 235. This is the same as taking 354 and adding it to itself 235 times.
Step 1: 0 + 354 = 354
Step 2: 354 + 354 = 708
Step 3: 708 + 354 = 1062
Step 4: 1062 + 354 = 1416
Step 5: 1416 + 354 = 1770
Step 6: 1770 + 354 = 2124
Step 7: 2124 + 354 = 2478
Step 8: 2478 + 354 = 2832
Step 9: 2832 + 354 = 3186
Step 10: 3186 + 354 = 3540
Step 11: 3540 + 354 = 3894
Step 12: 3894 + 354 = 4248
Step 13: 4248 + 354 = 4602
Step 14: 4602 + 354 = 4956
Step 15: 4956 + 354 = 5310
Step 16: 5310 + 354 = 5664
Step 17: 5664 + 354 = 6018
Step 18: 6018 + 354 = 6372
Step 19: 6372 + 354 = 6726
Step 20: 6726 + 354 = 7080
Step 21: 7080 + 354 = 7434
Step 22: 7434 + 354 = 7788
Step 23: 7788 + 354 = 8142
Step 24: 8142 + 354 = 8496
Step 25: 8496 + 354 = 8850
Step 26: 8850 + 354 = 9204
Step 27: 9204 + 354 = 9558
Step 28: 9558 + 354 = 9912
Step 29: 9912 + 354 = 10266
Step 30: 10266 + 354 = 10620
Step 31: 10620 + 354 = 10974
Step 32: 10974 + 354 = 11328
Step 33: 11328 + 354 = 11682
Step 34: 11682 + 354 = 12036
Step 35: 12036 + 354 = 12390
Step 36: 12390 + 354 = 12744
Step 37: 12744 + 354 = 13098
Step 38: 13098 + 354 = 13452
Step 39: 13452 + 354 = 13806
Step 40: 13806 + 354 = 14160
Step 41: 14160 + 354 = 14514
Step 42: 14514 + 354 = 14868
Step 43: 14868 + 354 = 15222
Step 44: 15222 + 354 = 15576
Step 45: 15576 + 354 = 15930
Step 46: 15930 + 354 = 16284
Step 47: 16284 + 354 = 16638
Step 48: 16638 + 354 = 16992
Step 49: 16992 + 354 = 17346
Step 50: 17346 + 354 = 17700
Step 51: 17700 + 354 = 18054
Step 52: 18054 + 354 = 18408
Step 53: 18408 + 354 = 18762
Step 54: 18762 + 354 = 19116
Step 55: 19116 + 354 = 19470
Step 56: 19470 + 354 = 19824
Step 57: 19824 + 354 = 20178
Step 58: 20178 + 354 = 20532
Step 59: 20532 + 354 = 20886
Step 60: 20886 + 354 = 21240
Step 61: 21240 + 354 = 21594
Step 62: 21594 + 354 = 21948
Step 63: 21948 + 354 = 22302
Step 64: 22302 + 354 = 22656
Step 65: 22656 + 354 = 23010
Step 66: 23010 + 354 = 23364
Step 67: 23364 + 354 = 23718
Step 68: 23718 + 354 = 24072
Step 69: 24072 + 354 = 24426
Step 70: 24426 + 354 = 24780
Step 71: 24780 + 354 = 25134
Step 72: 25134 + 354 = 25488
Step 73: 25488 + 354 = 25842
Step 74: 25842 + 354 = 26196
Step 75: 26196 + 354 = 26550
Step 76: 26550 + 354 = 26904
Step 77: 26904 + 354 = 27258
Step 78: 27258 + 354 = 27612
Step 79: 27612 + 354 = 27966
Step 80: 27966 + 354 = 28320
Step 81: 28320 + 354 = 28674
Step 82: 28674 + 354 = 29028
Step 83: 29028 + 354 = 29382
Step 84: 29382 + 354 = 29736
Step 85: 29736 + 354 = 30090
Step 86: 30090 + 354 = 30444
Step 87: 30444 + 354 = 30798
Step 88: 30798 + 354 = 31152
Step 89: 31152 + 354 = 31506
Step 90: 31506 + 354 = 31860
Step 91: 31860 + 354 = 32214
Step 92: 32214 + 354 = 32568
Step 93: 32568 + 354 = 32922
Step 94: 32922 + 354 = 33276
Step 95: 33276 + 354 = 33630
Step 96: 33630 + 354 = 33984
Step 97: 33984 + 354 = 34338
Step 98: 34338 + 354 = 34692
Step 99: 34692 + 354 = 35046
Step 100: 35046 + 354 = 35400
Step 101: 35400 + 354 = 35754
Step 102: 35754 + 354 = 36108
Step 103: 36108 + 354 = 36462
Step 104: 36462 + 354 = 36816
Step 105: 36816 + 354 = 37170
Step 106: 37170 + 354 = 37524
Step 107: 37524 + 354 = 37878
Step 108: 37878 + 354 = 38232
Step 109: 38232 + 354 = 38586
Step 110: 38586 + 354 = 38940
Step 111: 38940 + 354 = 39294
Step 112: 39294 + 354 = 39648
Step 113: 39648 + 354 = 40002
Step 114: 40002 + 354 = 40356
Step 115: 40356 + 354 = 40710
Step 116: 40710 + 354 = 41064
Step 117: 41064 + 354 = 41418
Step 118: 41418 + 354 = 41772
Step 119: 41772 + 354 = 42126
Step 120: 42126 + 354 = 42480
Step 121: 42480 + 354 = 42834
Step 122: 42834 + 354 = 43188
Step 123: 43188 + 354 = 43542
Step 124: 43542 + 354 = 43896
Step 125: 43896 + 354 = 44250
Step 126: 44250 + 354 = 44604
Step 127: 44604 + 354 = 44958
Step 128: 44958 + 354 = 45312
Step 129: 45312 + 354 = 45666
Step 130: 45666 + 354 = 46020
Step 131: 46020 + 354 = 46374
Step 132: 46374 + 354 = 46728
Step 133: 46728 + 354 = 47082
Step 134: 47082 + 354 = 47436
Step 135: 47436 + 354 = 47790
Step 136: 47790 + 354 = 48144
Step 137: 48144 + 354 = 48498
Step 138: 48498 + 354 = 48852
Step 139: 48852 + 354 = 49206
Step 140: 49206 + 354 = 49560
Step 141: 49560 + 354 = 49914
Step 142: 49914 + 354 = 50268
Step 143: 50268 + 354 = 50622
Step 144: 50622 + 354 = 50976
Step 145: 50976 + 354 = 51330
Step 146: 51330 + 354 = 51684
Step 147: 51684 + 354 = 52038
Step 148: 52038 + 354 = 52392
Step 149: 52392 + 354 = 52746
Step 150: 52746 + 354 = 53100
Step 151: 53100 + 354 = 53454
Step 152: 53454 + 354 = 53808
Step 153: 53808 + 354 = 54162
Step 154: 54162 + 354 = 54516
Step 155: 54516 + 354 = 54870
Step 156: 54870 + 354 = 55224
Step 157: 55224 + 354 = 55578
Step 158: 55578 + 354 = 55932
Step 159: 55932 + 354 = 56286
Step 160: 56286 + 354 = 56640
Step 161: 56640 + 354 = 56994
Step 162: 56994 + 354 = 57348
Step 163: 57348 + 354 = 57702
Step 164: 57702 + 354 = 58056
Step 165: 58056 + 354 = 58410
Step 166: 58410 + 354 = 58764
Step 167: 58764 + 354 = 59118
Step 168: 59118 + 354 = 59472
Step 169: 59472 + 354 = 59826
Step 170: 59826 + 354 = 60180
Step 171: 60180 + 354 = 60534
Step 172: 60534 + 354 = 60888
Step 173: 60888 + 354 = 61242
Step 174: 61242 + 354 = 61596
Step 175: 61596 + 354 = 61950
Step 176: 61950 + 354 = 62304
Step 177: 62304 + 354 = 62658
Step 178: 62658 + 354 = 63012
Step 179: 63012 + 354 = 63366
Step 180: 63366 + 354 = 63720
Step 181: 63720 + 354 = 64074
Step 182: 64074 + 354 = 64428
Step 183: 64428 + 354 = 64782
Step 184: 64782 + 354 = 65136
Step 185: 65136 + 354 = 65490
Step 186: 65490 + 354 = 65844
Step 187: 65844 + 354 = 66198
Step 188: 66198 + 354 = 66552
Step 189: 66552 + 354 = 66906
Step 190: 66906 + 354 = 67260
Step 191: 67260 + 354 = 67614
Step 192: 67614 + 354 = 67968
Step 193: 67968 + 354 = 68322
Step 194: 68322 + 354 = 68676
Step 195: 68676 + 354 = 69030
Step 196: 69030 + 354 = 69384
Step 197: 69384 + 354 = 69738
Step 198: 69738 + 354 = 70092
Step 199: 70092 + 354 = 70446
Step 200: 70446 + 354 = 70800
Step 201: 70800 + 354 = 71154
Step 202: 71154 + 354 = 71508
Step 203: 71508 + 354 = 71862
Step 204: 71862 + 354 = 72216
Step 205: 72216 + 354 = 72570
Step 206: 72570 + 354 = 72924
Step 207: 72924 + 354 = 73278
Step 208: 73278 + 354 = 73632
Step 209: 73632 + 354 = 73986
Step 210: 73986 + 354 = 74340
Step 211: 74340 + 354 = 74694
Step 212: 74694 + 354 = 75048
Step 213: 75048 + 354 = 75402
Step 214: 75402 + 354 = 75756
Step 215: 75756 + 354 = 76110
Step 216: 76110 + 354 = 76464
Step 217: 76464 + 354 = 76818
Step 218: 76818 + 354 = 77172
Step 219: 77172 + 354 = 77526
Step 220: 77526 + 354 = 77880
Step 221: 77880 + 354 = 78234
Step 222: 78234 + 354 = 78588
Step 223: 78588 + 354 = 78942
Step 224: 78942 + 354 = 79296
Step 225: 79296 + 354 = 79650
Step 226: 79650 + 354 = 80004
Step 227: 80004 + 354 = 80358
Step 228: 80358 + 354 = 80712
Step 229: 80712 + 354 = 81066
Step 230: 81066 + 354 = 81420
Step 231: 81420 + 354 = 81774
Step 232: 81774 + 354 = 82128
Step 233: 82128 + 354 = 82482
Step 234: 82482 + 354 = 82836
Step 235: 82836 + 354 = 83190

So, 354*235 = 83190