Let's get this math done. We have 838 and we're going to multiply it by 251. This is the same as taking 838 and adding it to itself 251 times.
Step 1: 0 + 838 = 838
Step 2: 838 + 838 = 1676
Step 3: 1676 + 838 = 2514
Step 4: 2514 + 838 = 3352
Step 5: 3352 + 838 = 4190
Step 6: 4190 + 838 = 5028
Step 7: 5028 + 838 = 5866
Step 8: 5866 + 838 = 6704
Step 9: 6704 + 838 = 7542
Step 10: 7542 + 838 = 8380
Step 11: 8380 + 838 = 9218
Step 12: 9218 + 838 = 10056
Step 13: 10056 + 838 = 10894
Step 14: 10894 + 838 = 11732
Step 15: 11732 + 838 = 12570
Step 16: 12570 + 838 = 13408
Step 17: 13408 + 838 = 14246
Step 18: 14246 + 838 = 15084
Step 19: 15084 + 838 = 15922
Step 20: 15922 + 838 = 16760
Step 21: 16760 + 838 = 17598
Step 22: 17598 + 838 = 18436
Step 23: 18436 + 838 = 19274
Step 24: 19274 + 838 = 20112
Step 25: 20112 + 838 = 20950
Step 26: 20950 + 838 = 21788
Step 27: 21788 + 838 = 22626
Step 28: 22626 + 838 = 23464
Step 29: 23464 + 838 = 24302
Step 30: 24302 + 838 = 25140
Step 31: 25140 + 838 = 25978
Step 32: 25978 + 838 = 26816
Step 33: 26816 + 838 = 27654
Step 34: 27654 + 838 = 28492
Step 35: 28492 + 838 = 29330
Step 36: 29330 + 838 = 30168
Step 37: 30168 + 838 = 31006
Step 38: 31006 + 838 = 31844
Step 39: 31844 + 838 = 32682
Step 40: 32682 + 838 = 33520
Step 41: 33520 + 838 = 34358
Step 42: 34358 + 838 = 35196
Step 43: 35196 + 838 = 36034
Step 44: 36034 + 838 = 36872
Step 45: 36872 + 838 = 37710
Step 46: 37710 + 838 = 38548
Step 47: 38548 + 838 = 39386
Step 48: 39386 + 838 = 40224
Step 49: 40224 + 838 = 41062
Step 50: 41062 + 838 = 41900
Step 51: 41900 + 838 = 42738
Step 52: 42738 + 838 = 43576
Step 53: 43576 + 838 = 44414
Step 54: 44414 + 838 = 45252
Step 55: 45252 + 838 = 46090
Step 56: 46090 + 838 = 46928
Step 57: 46928 + 838 = 47766
Step 58: 47766 + 838 = 48604
Step 59: 48604 + 838 = 49442
Step 60: 49442 + 838 = 50280
Step 61: 50280 + 838 = 51118
Step 62: 51118 + 838 = 51956
Step 63: 51956 + 838 = 52794
Step 64: 52794 + 838 = 53632
Step 65: 53632 + 838 = 54470
Step 66: 54470 + 838 = 55308
Step 67: 55308 + 838 = 56146
Step 68: 56146 + 838 = 56984
Step 69: 56984 + 838 = 57822
Step 70: 57822 + 838 = 58660
Step 71: 58660 + 838 = 59498
Step 72: 59498 + 838 = 60336
Step 73: 60336 + 838 = 61174
Step 74: 61174 + 838 = 62012
Step 75: 62012 + 838 = 62850
Step 76: 62850 + 838 = 63688
Step 77: 63688 + 838 = 64526
Step 78: 64526 + 838 = 65364
Step 79: 65364 + 838 = 66202
Step 80: 66202 + 838 = 67040
Step 81: 67040 + 838 = 67878
Step 82: 67878 + 838 = 68716
Step 83: 68716 + 838 = 69554
Step 84: 69554 + 838 = 70392
Step 85: 70392 + 838 = 71230
Step 86: 71230 + 838 = 72068
Step 87: 72068 + 838 = 72906
Step 88: 72906 + 838 = 73744
Step 89: 73744 + 838 = 74582
Step 90: 74582 + 838 = 75420
Step 91: 75420 + 838 = 76258
Step 92: 76258 + 838 = 77096
Step 93: 77096 + 838 = 77934
Step 94: 77934 + 838 = 78772
Step 95: 78772 + 838 = 79610
Step 96: 79610 + 838 = 80448
Step 97: 80448 + 838 = 81286
Step 98: 81286 + 838 = 82124
Step 99: 82124 + 838 = 82962
Step 100: 82962 + 838 = 83800
Step 101: 83800 + 838 = 84638
Step 102: 84638 + 838 = 85476
Step 103: 85476 + 838 = 86314
Step 104: 86314 + 838 = 87152
Step 105: 87152 + 838 = 87990
Step 106: 87990 + 838 = 88828
Step 107: 88828 + 838 = 89666
Step 108: 89666 + 838 = 90504
Step 109: 90504 + 838 = 91342
Step 110: 91342 + 838 = 92180
Step 111: 92180 + 838 = 93018
Step 112: 93018 + 838 = 93856
Step 113: 93856 + 838 = 94694
Step 114: 94694 + 838 = 95532
Step 115: 95532 + 838 = 96370
Step 116: 96370 + 838 = 97208
Step 117: 97208 + 838 = 98046
Step 118: 98046 + 838 = 98884
Step 119: 98884 + 838 = 99722
Step 120: 99722 + 838 = 100560
Step 121: 100560 + 838 = 101398
Step 122: 101398 + 838 = 102236
Step 123: 102236 + 838 = 103074
Step 124: 103074 + 838 = 103912
Step 125: 103912 + 838 = 104750
Step 126: 104750 + 838 = 105588
Step 127: 105588 + 838 = 106426
Step 128: 106426 + 838 = 107264
Step 129: 107264 + 838 = 108102
Step 130: 108102 + 838 = 108940
Step 131: 108940 + 838 = 109778
Step 132: 109778 + 838 = 110616
Step 133: 110616 + 838 = 111454
Step 134: 111454 + 838 = 112292
Step 135: 112292 + 838 = 113130
Step 136: 113130 + 838 = 113968
Step 137: 113968 + 838 = 114806
Step 138: 114806 + 838 = 115644
Step 139: 115644 + 838 = 116482
Step 140: 116482 + 838 = 117320
Step 141: 117320 + 838 = 118158
Step 142: 118158 + 838 = 118996
Step 143: 118996 + 838 = 119834
Step 144: 119834 + 838 = 120672
Step 145: 120672 + 838 = 121510
Step 146: 121510 + 838 = 122348
Step 147: 122348 + 838 = 123186
Step 148: 123186 + 838 = 124024
Step 149: 124024 + 838 = 124862
Step 150: 124862 + 838 = 125700
Step 151: 125700 + 838 = 126538
Step 152: 126538 + 838 = 127376
Step 153: 127376 + 838 = 128214
Step 154: 128214 + 838 = 129052
Step 155: 129052 + 838 = 129890
Step 156: 129890 + 838 = 130728
Step 157: 130728 + 838 = 131566
Step 158: 131566 + 838 = 132404
Step 159: 132404 + 838 = 133242
Step 160: 133242 + 838 = 134080
Step 161: 134080 + 838 = 134918
Step 162: 134918 + 838 = 135756
Step 163: 135756 + 838 = 136594
Step 164: 136594 + 838 = 137432
Step 165: 137432 + 838 = 138270
Step 166: 138270 + 838 = 139108
Step 167: 139108 + 838 = 139946
Step 168: 139946 + 838 = 140784
Step 169: 140784 + 838 = 141622
Step 170: 141622 + 838 = 142460
Step 171: 142460 + 838 = 143298
Step 172: 143298 + 838 = 144136
Step 173: 144136 + 838 = 144974
Step 174: 144974 + 838 = 145812
Step 175: 145812 + 838 = 146650
Step 176: 146650 + 838 = 147488
Step 177: 147488 + 838 = 148326
Step 178: 148326 + 838 = 149164
Step 179: 149164 + 838 = 150002
Step 180: 150002 + 838 = 150840
Step 181: 150840 + 838 = 151678
Step 182: 151678 + 838 = 152516
Step 183: 152516 + 838 = 153354
Step 184: 153354 + 838 = 154192
Step 185: 154192 + 838 = 155030
Step 186: 155030 + 838 = 155868
Step 187: 155868 + 838 = 156706
Step 188: 156706 + 838 = 157544
Step 189: 157544 + 838 = 158382
Step 190: 158382 + 838 = 159220
Step 191: 159220 + 838 = 160058
Step 192: 160058 + 838 = 160896
Step 193: 160896 + 838 = 161734
Step 194: 161734 + 838 = 162572
Step 195: 162572 + 838 = 163410
Step 196: 163410 + 838 = 164248
Step 197: 164248 + 838 = 165086
Step 198: 165086 + 838 = 165924
Step 199: 165924 + 838 = 166762
Step 200: 166762 + 838 = 167600
Step 201: 167600 + 838 = 168438
Step 202: 168438 + 838 = 169276
Step 203: 169276 + 838 = 170114
Step 204: 170114 + 838 = 170952
Step 205: 170952 + 838 = 171790
Step 206: 171790 + 838 = 172628
Step 207: 172628 + 838 = 173466
Step 208: 173466 + 838 = 174304
Step 209: 174304 + 838 = 175142
Step 210: 175142 + 838 = 175980
Step 211: 175980 + 838 = 176818
Step 212: 176818 + 838 = 177656
Step 213: 177656 + 838 = 178494
Step 214: 178494 + 838 = 179332
Step 215: 179332 + 838 = 180170
Step 216: 180170 + 838 = 181008
Step 217: 181008 + 838 = 181846
Step 218: 181846 + 838 = 182684
Step 219: 182684 + 838 = 183522
Step 220: 183522 + 838 = 184360
Step 221: 184360 + 838 = 185198
Step 222: 185198 + 838 = 186036
Step 223: 186036 + 838 = 186874
Step 224: 186874 + 838 = 187712
Step 225: 187712 + 838 = 188550
Step 226: 188550 + 838 = 189388
Step 227: 189388 + 838 = 190226
Step 228: 190226 + 838 = 191064
Step 229: 191064 + 838 = 191902
Step 230: 191902 + 838 = 192740
Step 231: 192740 + 838 = 193578
Step 232: 193578 + 838 = 194416
Step 233: 194416 + 838 = 195254
Step 234: 195254 + 838 = 196092
Step 235: 196092 + 838 = 196930
Step 236: 196930 + 838 = 197768
Step 237: 197768 + 838 = 198606
Step 238: 198606 + 838 = 199444
Step 239: 199444 + 838 = 200282
Step 240: 200282 + 838 = 201120
Step 241: 201120 + 838 = 201958
Step 242: 201958 + 838 = 202796
Step 243: 202796 + 838 = 203634
Step 244: 203634 + 838 = 204472
Step 245: 204472 + 838 = 205310
Step 246: 205310 + 838 = 206148
Step 247: 206148 + 838 = 206986
Step 248: 206986 + 838 = 207824
Step 249: 207824 + 838 = 208662
Step 250: 208662 + 838 = 209500
Step 251: 209500 + 838 = 210338

So, 838*251 = 210338