Sure thing, let's get straight to it. We start with 871 and we're going to multiply it by 396, which means adding 871 to itself 396 times.
Step 1: 0 + 871 = 871
Step 2: 871 + 871 = 1742
Step 3: 1742 + 871 = 2613
Step 4: 2613 + 871 = 3484
Step 5: 3484 + 871 = 4355
Step 6: 4355 + 871 = 5226
Step 7: 5226 + 871 = 6097
Step 8: 6097 + 871 = 6968
Step 9: 6968 + 871 = 7839
Step 10: 7839 + 871 = 8710
Step 11: 8710 + 871 = 9581
Step 12: 9581 + 871 = 10452
Step 13: 10452 + 871 = 11323
Step 14: 11323 + 871 = 12194
Step 15: 12194 + 871 = 13065
Step 16: 13065 + 871 = 13936
Step 17: 13936 + 871 = 14807
Step 18: 14807 + 871 = 15678
Step 19: 15678 + 871 = 16549
Step 20: 16549 + 871 = 17420
Step 21: 17420 + 871 = 18291
Step 22: 18291 + 871 = 19162
Step 23: 19162 + 871 = 20033
Step 24: 20033 + 871 = 20904
Step 25: 20904 + 871 = 21775
Step 26: 21775 + 871 = 22646
Step 27: 22646 + 871 = 23517
Step 28: 23517 + 871 = 24388
Step 29: 24388 + 871 = 25259
Step 30: 25259 + 871 = 26130
Step 31: 26130 + 871 = 27001
Step 32: 27001 + 871 = 27872
Step 33: 27872 + 871 = 28743
Step 34: 28743 + 871 = 29614
Step 35: 29614 + 871 = 30485
Step 36: 30485 + 871 = 31356
Step 37: 31356 + 871 = 32227
Step 38: 32227 + 871 = 33098
Step 39: 33098 + 871 = 33969
Step 40: 33969 + 871 = 34840
Step 41: 34840 + 871 = 35711
Step 42: 35711 + 871 = 36582
Step 43: 36582 + 871 = 37453
Step 44: 37453 + 871 = 38324
Step 45: 38324 + 871 = 39195
Step 46: 39195 + 871 = 40066
Step 47: 40066 + 871 = 40937
Step 48: 40937 + 871 = 41808
Step 49: 41808 + 871 = 42679
Step 50: 42679 + 871 = 43550
Step 51: 43550 + 871 = 44421
Step 52: 44421 + 871 = 45292
Step 53: 45292 + 871 = 46163
Step 54: 46163 + 871 = 47034
Step 55: 47034 + 871 = 47905
Step 56: 47905 + 871 = 48776
Step 57: 48776 + 871 = 49647
Step 58: 49647 + 871 = 50518
Step 59: 50518 + 871 = 51389
Step 60: 51389 + 871 = 52260
Step 61: 52260 + 871 = 53131
Step 62: 53131 + 871 = 54002
Step 63: 54002 + 871 = 54873
Step 64: 54873 + 871 = 55744
Step 65: 55744 + 871 = 56615
Step 66: 56615 + 871 = 57486
Step 67: 57486 + 871 = 58357
Step 68: 58357 + 871 = 59228
Step 69: 59228 + 871 = 60099
Step 70: 60099 + 871 = 60970
Step 71: 60970 + 871 = 61841
Step 72: 61841 + 871 = 62712
Step 73: 62712 + 871 = 63583
Step 74: 63583 + 871 = 64454
Step 75: 64454 + 871 = 65325
Step 76: 65325 + 871 = 66196
Step 77: 66196 + 871 = 67067
Step 78: 67067 + 871 = 67938
Step 79: 67938 + 871 = 68809
Step 80: 68809 + 871 = 69680
Step 81: 69680 + 871 = 70551
Step 82: 70551 + 871 = 71422
Step 83: 71422 + 871 = 72293
Step 84: 72293 + 871 = 73164
Step 85: 73164 + 871 = 74035
Step 86: 74035 + 871 = 74906
Step 87: 74906 + 871 = 75777
Step 88: 75777 + 871 = 76648
Step 89: 76648 + 871 = 77519
Step 90: 77519 + 871 = 78390
Step 91: 78390 + 871 = 79261
Step 92: 79261 + 871 = 80132
Step 93: 80132 + 871 = 81003
Step 94: 81003 + 871 = 81874
Step 95: 81874 + 871 = 82745
Step 96: 82745 + 871 = 83616
Step 97: 83616 + 871 = 84487
Step 98: 84487 + 871 = 85358
Step 99: 85358 + 871 = 86229
Step 100: 86229 + 871 = 87100
Step 101: 87100 + 871 = 87971
Step 102: 87971 + 871 = 88842
Step 103: 88842 + 871 = 89713
Step 104: 89713 + 871 = 90584
Step 105: 90584 + 871 = 91455
Step 106: 91455 + 871 = 92326
Step 107: 92326 + 871 = 93197
Step 108: 93197 + 871 = 94068
Step 109: 94068 + 871 = 94939
Step 110: 94939 + 871 = 95810
Step 111: 95810 + 871 = 96681
Step 112: 96681 + 871 = 97552
Step 113: 97552 + 871 = 98423
Step 114: 98423 + 871 = 99294
Step 115: 99294 + 871 = 100165
Step 116: 100165 + 871 = 101036
Step 117: 101036 + 871 = 101907
Step 118: 101907 + 871 = 102778
Step 119: 102778 + 871 = 103649
Step 120: 103649 + 871 = 104520
Step 121: 104520 + 871 = 105391
Step 122: 105391 + 871 = 106262
Step 123: 106262 + 871 = 107133
Step 124: 107133 + 871 = 108004
Step 125: 108004 + 871 = 108875
Step 126: 108875 + 871 = 109746
Step 127: 109746 + 871 = 110617
Step 128: 110617 + 871 = 111488
Step 129: 111488 + 871 = 112359
Step 130: 112359 + 871 = 113230
Step 131: 113230 + 871 = 114101
Step 132: 114101 + 871 = 114972
Step 133: 114972 + 871 = 115843
Step 134: 115843 + 871 = 116714
Step 135: 116714 + 871 = 117585
Step 136: 117585 + 871 = 118456
Step 137: 118456 + 871 = 119327
Step 138: 119327 + 871 = 120198
Step 139: 120198 + 871 = 121069
Step 140: 121069 + 871 = 121940
Step 141: 121940 + 871 = 122811
Step 142: 122811 + 871 = 123682
Step 143: 123682 + 871 = 124553
Step 144: 124553 + 871 = 125424
Step 145: 125424 + 871 = 126295
Step 146: 126295 + 871 = 127166
Step 147: 127166 + 871 = 128037
Step 148: 128037 + 871 = 128908
Step 149: 128908 + 871 = 129779
Step 150: 129779 + 871 = 130650
Step 151: 130650 + 871 = 131521
Step 152: 131521 + 871 = 132392
Step 153: 132392 + 871 = 133263
Step 154: 133263 + 871 = 134134
Step 155: 134134 + 871 = 135005
Step 156: 135005 + 871 = 135876
Step 157: 135876 + 871 = 136747
Step 158: 136747 + 871 = 137618
Step 159: 137618 + 871 = 138489
Step 160: 138489 + 871 = 139360
Step 161: 139360 + 871 = 140231
Step 162: 140231 + 871 = 141102
Step 163: 141102 + 871 = 141973
Step 164: 141973 + 871 = 142844
Step 165: 142844 + 871 = 143715
Step 166: 143715 + 871 = 144586
Step 167: 144586 + 871 = 145457
Step 168: 145457 + 871 = 146328
Step 169: 146328 + 871 = 147199
Step 170: 147199 + 871 = 148070
Step 171: 148070 + 871 = 148941
Step 172: 148941 + 871 = 149812
Step 173: 149812 + 871 = 150683
Step 174: 150683 + 871 = 151554
Step 175: 151554 + 871 = 152425
Step 176: 152425 + 871 = 153296
Step 177: 153296 + 871 = 154167
Step 178: 154167 + 871 = 155038
Step 179: 155038 + 871 = 155909
Step 180: 155909 + 871 = 156780
Step 181: 156780 + 871 = 157651
Step 182: 157651 + 871 = 158522
Step 183: 158522 + 871 = 159393
Step 184: 159393 + 871 = 160264
Step 185: 160264 + 871 = 161135
Step 186: 161135 + 871 = 162006
Step 187: 162006 + 871 = 162877
Step 188: 162877 + 871 = 163748
Step 189: 163748 + 871 = 164619
Step 190: 164619 + 871 = 165490
Step 191: 165490 + 871 = 166361
Step 192: 166361 + 871 = 167232
Step 193: 167232 + 871 = 168103
Step 194: 168103 + 871 = 168974
Step 195: 168974 + 871 = 169845
Step 196: 169845 + 871 = 170716
Step 197: 170716 + 871 = 171587
Step 198: 171587 + 871 = 172458
Step 199: 172458 + 871 = 173329
Step 200: 173329 + 871 = 174200
Step 201: 174200 + 871 = 175071
Step 202: 175071 + 871 = 175942
Step 203: 175942 + 871 = 176813
Step 204: 176813 + 871 = 177684
Step 205: 177684 + 871 = 178555
Step 206: 178555 + 871 = 179426
Step 207: 179426 + 871 = 180297
Step 208: 180297 + 871 = 181168
Step 209: 181168 + 871 = 182039
Step 210: 182039 + 871 = 182910
Step 211: 182910 + 871 = 183781
Step 212: 183781 + 871 = 184652
Step 213: 184652 + 871 = 185523
Step 214: 185523 + 871 = 186394
Step 215: 186394 + 871 = 187265
Step 216: 187265 + 871 = 188136
Step 217: 188136 + 871 = 189007
Step 218: 189007 + 871 = 189878
Step 219: 189878 + 871 = 190749
Step 220: 190749 + 871 = 191620
Step 221: 191620 + 871 = 192491
Step 222: 192491 + 871 = 193362
Step 223: 193362 + 871 = 194233
Step 224: 194233 + 871 = 195104
Step 225: 195104 + 871 = 195975
Step 226: 195975 + 871 = 196846
Step 227: 196846 + 871 = 197717
Step 228: 197717 + 871 = 198588
Step 229: 198588 + 871 = 199459
Step 230: 199459 + 871 = 200330
Step 231: 200330 + 871 = 201201
Step 232: 201201 + 871 = 202072
Step 233: 202072 + 871 = 202943
Step 234: 202943 + 871 = 203814
Step 235: 203814 + 871 = 204685
Step 236: 204685 + 871 = 205556
Step 237: 205556 + 871 = 206427
Step 238: 206427 + 871 = 207298
Step 239: 207298 + 871 = 208169
Step 240: 208169 + 871 = 209040
Step 241: 209040 + 871 = 209911
Step 242: 209911 + 871 = 210782
Step 243: 210782 + 871 = 211653
Step 244: 211653 + 871 = 212524
Step 245: 212524 + 871 = 213395
Step 246: 213395 + 871 = 214266
Step 247: 214266 + 871 = 215137
Step 248: 215137 + 871 = 216008
Step 249: 216008 + 871 = 216879
Step 250: 216879 + 871 = 217750
Step 251: 217750 + 871 = 218621
Step 252: 218621 + 871 = 219492
Step 253: 219492 + 871 = 220363
Step 254: 220363 + 871 = 221234
Step 255: 221234 + 871 = 222105
Step 256: 222105 + 871 = 222976
Step 257: 222976 + 871 = 223847
Step 258: 223847 + 871 = 224718
Step 259: 224718 + 871 = 225589
Step 260: 225589 + 871 = 226460
Step 261: 226460 + 871 = 227331
Step 262: 227331 + 871 = 228202
Step 263: 228202 + 871 = 229073
Step 264: 229073 + 871 = 229944
Step 265: 229944 + 871 = 230815
Step 266: 230815 + 871 = 231686
Step 267: 231686 + 871 = 232557
Step 268: 232557 + 871 = 233428
Step 269: 233428 + 871 = 234299
Step 270: 234299 + 871 = 235170
Step 271: 235170 + 871 = 236041
Step 272: 236041 + 871 = 236912
Step 273: 236912 + 871 = 237783
Step 274: 237783 + 871 = 238654
Step 275: 238654 + 871 = 239525
Step 276: 239525 + 871 = 240396
Step 277: 240396 + 871 = 241267
Step 278: 241267 + 871 = 242138
Step 279: 242138 + 871 = 243009
Step 280: 243009 + 871 = 243880
Step 281: 243880 + 871 = 244751
Step 282: 244751 + 871 = 245622
Step 283: 245622 + 871 = 246493
Step 284: 246493 + 871 = 247364
Step 285: 247364 + 871 = 248235
Step 286: 248235 + 871 = 249106
Step 287: 249106 + 871 = 249977
Step 288: 249977 + 871 = 250848
Step 289: 250848 + 871 = 251719
Step 290: 251719 + 871 = 252590
Step 291: 252590 + 871 = 253461
Step 292: 253461 + 871 = 254332
Step 293: 254332 + 871 = 255203
Step 294: 255203 + 871 = 256074
Step 295: 256074 + 871 = 256945
Step 296: 256945 + 871 = 257816
Step 297: 257816 + 871 = 258687
Step 298: 258687 + 871 = 259558
Step 299: 259558 + 871 = 260429
Step 300: 260429 + 871 = 261300
Step 301: 261300 + 871 = 262171
Step 302: 262171 + 871 = 263042
Step 303: 263042 + 871 = 263913
Step 304: 263913 + 871 = 264784
Step 305: 264784 + 871 = 265655
Step 306: 265655 + 871 = 266526
Step 307: 266526 + 871 = 267397
Step 308: 267397 + 871 = 268268
Step 309: 268268 + 871 = 269139
Step 310: 269139 + 871 = 270010
Step 311: 270010 + 871 = 270881
Step 312: 270881 + 871 = 271752
Step 313: 271752 + 871 = 272623
Step 314: 272623 + 871 = 273494
Step 315: 273494 + 871 = 274365
Step 316: 274365 + 871 = 275236
Step 317: 275236 + 871 = 276107
Step 318: 276107 + 871 = 276978
Step 319: 276978 + 871 = 277849
Step 320: 277849 + 871 = 278720
Step 321: 278720 + 871 = 279591
Step 322: 279591 + 871 = 280462
Step 323: 280462 + 871 = 281333
Step 324: 281333 + 871 = 282204
Step 325: 282204 + 871 = 283075
Step 326: 283075 + 871 = 283946
Step 327: 283946 + 871 = 284817
Step 328: 284817 + 871 = 285688
Step 329: 285688 + 871 = 286559
Step 330: 286559 + 871 = 287430
Step 331: 287430 + 871 = 288301
Step 332: 288301 + 871 = 289172
Step 333: 289172 + 871 = 290043
Step 334: 290043 + 871 = 290914
Step 335: 290914 + 871 = 291785
Step 336: 291785 + 871 = 292656
Step 337: 292656 + 871 = 293527
Step 338: 293527 + 871 = 294398
Step 339: 294398 + 871 = 295269
Step 340: 295269 + 871 = 296140
Step 341: 296140 + 871 = 297011
Step 342: 297011 + 871 = 297882
Step 343: 297882 + 871 = 298753
Step 344: 298753 + 871 = 299624
Step 345: 299624 + 871 = 300495
Step 346: 300495 + 871 = 301366
Step 347: 301366 + 871 = 302237
Step 348: 302237 + 871 = 303108
Step 349: 303108 + 871 = 303979
Step 350: 303979 + 871 = 304850
Step 351: 304850 + 871 = 305721
Step 352: 305721 + 871 = 306592
Step 353: 306592 + 871 = 307463
Step 354: 307463 + 871 = 308334
Step 355: 308334 + 871 = 309205
Step 356: 309205 + 871 = 310076
Step 357: 310076 + 871 = 310947
Step 358: 310947 + 871 = 311818
Step 359: 311818 + 871 = 312689
Step 360: 312689 + 871 = 313560
Step 361: 313560 + 871 = 314431
Step 362: 314431 + 871 = 315302
Step 363: 315302 + 871 = 316173
Step 364: 316173 + 871 = 317044
Step 365: 317044 + 871 = 317915
Step 366: 317915 + 871 = 318786
Step 367: 318786 + 871 = 319657
Step 368: 319657 + 871 = 320528
Step 369: 320528 + 871 = 321399
Step 370: 321399 + 871 = 322270
Step 371: 322270 + 871 = 323141
Step 372: 323141 + 871 = 324012
Step 373: 324012 + 871 = 324883
Step 374: 324883 + 871 = 325754
Step 375: 325754 + 871 = 326625
Step 376: 326625 + 871 = 327496
Step 377: 327496 + 871 = 328367
Step 378: 328367 + 871 = 329238
Step 379: 329238 + 871 = 330109
Step 380: 330109 + 871 = 330980
Step 381: 330980 + 871 = 331851
Step 382: 331851 + 871 = 332722
Step 383: 332722 + 871 = 333593
Step 384: 333593 + 871 = 334464
Step 385: 334464 + 871 = 335335
Step 386: 335335 + 871 = 336206
Step 387: 336206 + 871 = 337077
Step 388: 337077 + 871 = 337948
Step 389: 337948 + 871 = 338819
Step 390: 338819 + 871 = 339690
Step 391: 339690 + 871 = 340561
Step 392: 340561 + 871 = 341432
Step 393: 341432 + 871 = 342303
Step 394: 342303 + 871 = 343174
Step 395: 343174 + 871 = 344045
Step 396: 344045 + 871 = 344916

So, 871*396 = 344916