Let's get this math done. We have 861 and we're going to multiply it by 404. This is the same as taking 861 and adding it to itself 404 times.
Step 1: 0 + 861 = 861
Step 2: 861 + 861 = 1722
Step 3: 1722 + 861 = 2583
Step 4: 2583 + 861 = 3444
Step 5: 3444 + 861 = 4305
Step 6: 4305 + 861 = 5166
Step 7: 5166 + 861 = 6027
Step 8: 6027 + 861 = 6888
Step 9: 6888 + 861 = 7749
Step 10: 7749 + 861 = 8610
Step 11: 8610 + 861 = 9471
Step 12: 9471 + 861 = 10332
Step 13: 10332 + 861 = 11193
Step 14: 11193 + 861 = 12054
Step 15: 12054 + 861 = 12915
Step 16: 12915 + 861 = 13776
Step 17: 13776 + 861 = 14637
Step 18: 14637 + 861 = 15498
Step 19: 15498 + 861 = 16359
Step 20: 16359 + 861 = 17220
Step 21: 17220 + 861 = 18081
Step 22: 18081 + 861 = 18942
Step 23: 18942 + 861 = 19803
Step 24: 19803 + 861 = 20664
Step 25: 20664 + 861 = 21525
Step 26: 21525 + 861 = 22386
Step 27: 22386 + 861 = 23247
Step 28: 23247 + 861 = 24108
Step 29: 24108 + 861 = 24969
Step 30: 24969 + 861 = 25830
Step 31: 25830 + 861 = 26691
Step 32: 26691 + 861 = 27552
Step 33: 27552 + 861 = 28413
Step 34: 28413 + 861 = 29274
Step 35: 29274 + 861 = 30135
Step 36: 30135 + 861 = 30996
Step 37: 30996 + 861 = 31857
Step 38: 31857 + 861 = 32718
Step 39: 32718 + 861 = 33579
Step 40: 33579 + 861 = 34440
Step 41: 34440 + 861 = 35301
Step 42: 35301 + 861 = 36162
Step 43: 36162 + 861 = 37023
Step 44: 37023 + 861 = 37884
Step 45: 37884 + 861 = 38745
Step 46: 38745 + 861 = 39606
Step 47: 39606 + 861 = 40467
Step 48: 40467 + 861 = 41328
Step 49: 41328 + 861 = 42189
Step 50: 42189 + 861 = 43050
Step 51: 43050 + 861 = 43911
Step 52: 43911 + 861 = 44772
Step 53: 44772 + 861 = 45633
Step 54: 45633 + 861 = 46494
Step 55: 46494 + 861 = 47355
Step 56: 47355 + 861 = 48216
Step 57: 48216 + 861 = 49077
Step 58: 49077 + 861 = 49938
Step 59: 49938 + 861 = 50799
Step 60: 50799 + 861 = 51660
Step 61: 51660 + 861 = 52521
Step 62: 52521 + 861 = 53382
Step 63: 53382 + 861 = 54243
Step 64: 54243 + 861 = 55104
Step 65: 55104 + 861 = 55965
Step 66: 55965 + 861 = 56826
Step 67: 56826 + 861 = 57687
Step 68: 57687 + 861 = 58548
Step 69: 58548 + 861 = 59409
Step 70: 59409 + 861 = 60270
Step 71: 60270 + 861 = 61131
Step 72: 61131 + 861 = 61992
Step 73: 61992 + 861 = 62853
Step 74: 62853 + 861 = 63714
Step 75: 63714 + 861 = 64575
Step 76: 64575 + 861 = 65436
Step 77: 65436 + 861 = 66297
Step 78: 66297 + 861 = 67158
Step 79: 67158 + 861 = 68019
Step 80: 68019 + 861 = 68880
Step 81: 68880 + 861 = 69741
Step 82: 69741 + 861 = 70602
Step 83: 70602 + 861 = 71463
Step 84: 71463 + 861 = 72324
Step 85: 72324 + 861 = 73185
Step 86: 73185 + 861 = 74046
Step 87: 74046 + 861 = 74907
Step 88: 74907 + 861 = 75768
Step 89: 75768 + 861 = 76629
Step 90: 76629 + 861 = 77490
Step 91: 77490 + 861 = 78351
Step 92: 78351 + 861 = 79212
Step 93: 79212 + 861 = 80073
Step 94: 80073 + 861 = 80934
Step 95: 80934 + 861 = 81795
Step 96: 81795 + 861 = 82656
Step 97: 82656 + 861 = 83517
Step 98: 83517 + 861 = 84378
Step 99: 84378 + 861 = 85239
Step 100: 85239 + 861 = 86100
Step 101: 86100 + 861 = 86961
Step 102: 86961 + 861 = 87822
Step 103: 87822 + 861 = 88683
Step 104: 88683 + 861 = 89544
Step 105: 89544 + 861 = 90405
Step 106: 90405 + 861 = 91266
Step 107: 91266 + 861 = 92127
Step 108: 92127 + 861 = 92988
Step 109: 92988 + 861 = 93849
Step 110: 93849 + 861 = 94710
Step 111: 94710 + 861 = 95571
Step 112: 95571 + 861 = 96432
Step 113: 96432 + 861 = 97293
Step 114: 97293 + 861 = 98154
Step 115: 98154 + 861 = 99015
Step 116: 99015 + 861 = 99876
Step 117: 99876 + 861 = 100737
Step 118: 100737 + 861 = 101598
Step 119: 101598 + 861 = 102459
Step 120: 102459 + 861 = 103320
Step 121: 103320 + 861 = 104181
Step 122: 104181 + 861 = 105042
Step 123: 105042 + 861 = 105903
Step 124: 105903 + 861 = 106764
Step 125: 106764 + 861 = 107625
Step 126: 107625 + 861 = 108486
Step 127: 108486 + 861 = 109347
Step 128: 109347 + 861 = 110208
Step 129: 110208 + 861 = 111069
Step 130: 111069 + 861 = 111930
Step 131: 111930 + 861 = 112791
Step 132: 112791 + 861 = 113652
Step 133: 113652 + 861 = 114513
Step 134: 114513 + 861 = 115374
Step 135: 115374 + 861 = 116235
Step 136: 116235 + 861 = 117096
Step 137: 117096 + 861 = 117957
Step 138: 117957 + 861 = 118818
Step 139: 118818 + 861 = 119679
Step 140: 119679 + 861 = 120540
Step 141: 120540 + 861 = 121401
Step 142: 121401 + 861 = 122262
Step 143: 122262 + 861 = 123123
Step 144: 123123 + 861 = 123984
Step 145: 123984 + 861 = 124845
Step 146: 124845 + 861 = 125706
Step 147: 125706 + 861 = 126567
Step 148: 126567 + 861 = 127428
Step 149: 127428 + 861 = 128289
Step 150: 128289 + 861 = 129150
Step 151: 129150 + 861 = 130011
Step 152: 130011 + 861 = 130872
Step 153: 130872 + 861 = 131733
Step 154: 131733 + 861 = 132594
Step 155: 132594 + 861 = 133455
Step 156: 133455 + 861 = 134316
Step 157: 134316 + 861 = 135177
Step 158: 135177 + 861 = 136038
Step 159: 136038 + 861 = 136899
Step 160: 136899 + 861 = 137760
Step 161: 137760 + 861 = 138621
Step 162: 138621 + 861 = 139482
Step 163: 139482 + 861 = 140343
Step 164: 140343 + 861 = 141204
Step 165: 141204 + 861 = 142065
Step 166: 142065 + 861 = 142926
Step 167: 142926 + 861 = 143787
Step 168: 143787 + 861 = 144648
Step 169: 144648 + 861 = 145509
Step 170: 145509 + 861 = 146370
Step 171: 146370 + 861 = 147231
Step 172: 147231 + 861 = 148092
Step 173: 148092 + 861 = 148953
Step 174: 148953 + 861 = 149814
Step 175: 149814 + 861 = 150675
Step 176: 150675 + 861 = 151536
Step 177: 151536 + 861 = 152397
Step 178: 152397 + 861 = 153258
Step 179: 153258 + 861 = 154119
Step 180: 154119 + 861 = 154980
Step 181: 154980 + 861 = 155841
Step 182: 155841 + 861 = 156702
Step 183: 156702 + 861 = 157563
Step 184: 157563 + 861 = 158424
Step 185: 158424 + 861 = 159285
Step 186: 159285 + 861 = 160146
Step 187: 160146 + 861 = 161007
Step 188: 161007 + 861 = 161868
Step 189: 161868 + 861 = 162729
Step 190: 162729 + 861 = 163590
Step 191: 163590 + 861 = 164451
Step 192: 164451 + 861 = 165312
Step 193: 165312 + 861 = 166173
Step 194: 166173 + 861 = 167034
Step 195: 167034 + 861 = 167895
Step 196: 167895 + 861 = 168756
Step 197: 168756 + 861 = 169617
Step 198: 169617 + 861 = 170478
Step 199: 170478 + 861 = 171339
Step 200: 171339 + 861 = 172200
Step 201: 172200 + 861 = 173061
Step 202: 173061 + 861 = 173922
Step 203: 173922 + 861 = 174783
Step 204: 174783 + 861 = 175644
Step 205: 175644 + 861 = 176505
Step 206: 176505 + 861 = 177366
Step 207: 177366 + 861 = 178227
Step 208: 178227 + 861 = 179088
Step 209: 179088 + 861 = 179949
Step 210: 179949 + 861 = 180810
Step 211: 180810 + 861 = 181671
Step 212: 181671 + 861 = 182532
Step 213: 182532 + 861 = 183393
Step 214: 183393 + 861 = 184254
Step 215: 184254 + 861 = 185115
Step 216: 185115 + 861 = 185976
Step 217: 185976 + 861 = 186837
Step 218: 186837 + 861 = 187698
Step 219: 187698 + 861 = 188559
Step 220: 188559 + 861 = 189420
Step 221: 189420 + 861 = 190281
Step 222: 190281 + 861 = 191142
Step 223: 191142 + 861 = 192003
Step 224: 192003 + 861 = 192864
Step 225: 192864 + 861 = 193725
Step 226: 193725 + 861 = 194586
Step 227: 194586 + 861 = 195447
Step 228: 195447 + 861 = 196308
Step 229: 196308 + 861 = 197169
Step 230: 197169 + 861 = 198030
Step 231: 198030 + 861 = 198891
Step 232: 198891 + 861 = 199752
Step 233: 199752 + 861 = 200613
Step 234: 200613 + 861 = 201474
Step 235: 201474 + 861 = 202335
Step 236: 202335 + 861 = 203196
Step 237: 203196 + 861 = 204057
Step 238: 204057 + 861 = 204918
Step 239: 204918 + 861 = 205779
Step 240: 205779 + 861 = 206640
Step 241: 206640 + 861 = 207501
Step 242: 207501 + 861 = 208362
Step 243: 208362 + 861 = 209223
Step 244: 209223 + 861 = 210084
Step 245: 210084 + 861 = 210945
Step 246: 210945 + 861 = 211806
Step 247: 211806 + 861 = 212667
Step 248: 212667 + 861 = 213528
Step 249: 213528 + 861 = 214389
Step 250: 214389 + 861 = 215250
Step 251: 215250 + 861 = 216111
Step 252: 216111 + 861 = 216972
Step 253: 216972 + 861 = 217833
Step 254: 217833 + 861 = 218694
Step 255: 218694 + 861 = 219555
Step 256: 219555 + 861 = 220416
Step 257: 220416 + 861 = 221277
Step 258: 221277 + 861 = 222138
Step 259: 222138 + 861 = 222999
Step 260: 222999 + 861 = 223860
Step 261: 223860 + 861 = 224721
Step 262: 224721 + 861 = 225582
Step 263: 225582 + 861 = 226443
Step 264: 226443 + 861 = 227304
Step 265: 227304 + 861 = 228165
Step 266: 228165 + 861 = 229026
Step 267: 229026 + 861 = 229887
Step 268: 229887 + 861 = 230748
Step 269: 230748 + 861 = 231609
Step 270: 231609 + 861 = 232470
Step 271: 232470 + 861 = 233331
Step 272: 233331 + 861 = 234192
Step 273: 234192 + 861 = 235053
Step 274: 235053 + 861 = 235914
Step 275: 235914 + 861 = 236775
Step 276: 236775 + 861 = 237636
Step 277: 237636 + 861 = 238497
Step 278: 238497 + 861 = 239358
Step 279: 239358 + 861 = 240219
Step 280: 240219 + 861 = 241080
Step 281: 241080 + 861 = 241941
Step 282: 241941 + 861 = 242802
Step 283: 242802 + 861 = 243663
Step 284: 243663 + 861 = 244524
Step 285: 244524 + 861 = 245385
Step 286: 245385 + 861 = 246246
Step 287: 246246 + 861 = 247107
Step 288: 247107 + 861 = 247968
Step 289: 247968 + 861 = 248829
Step 290: 248829 + 861 = 249690
Step 291: 249690 + 861 = 250551
Step 292: 250551 + 861 = 251412
Step 293: 251412 + 861 = 252273
Step 294: 252273 + 861 = 253134
Step 295: 253134 + 861 = 253995
Step 296: 253995 + 861 = 254856
Step 297: 254856 + 861 = 255717
Step 298: 255717 + 861 = 256578
Step 299: 256578 + 861 = 257439
Step 300: 257439 + 861 = 258300
Step 301: 258300 + 861 = 259161
Step 302: 259161 + 861 = 260022
Step 303: 260022 + 861 = 260883
Step 304: 260883 + 861 = 261744
Step 305: 261744 + 861 = 262605
Step 306: 262605 + 861 = 263466
Step 307: 263466 + 861 = 264327
Step 308: 264327 + 861 = 265188
Step 309: 265188 + 861 = 266049
Step 310: 266049 + 861 = 266910
Step 311: 266910 + 861 = 267771
Step 312: 267771 + 861 = 268632
Step 313: 268632 + 861 = 269493
Step 314: 269493 + 861 = 270354
Step 315: 270354 + 861 = 271215
Step 316: 271215 + 861 = 272076
Step 317: 272076 + 861 = 272937
Step 318: 272937 + 861 = 273798
Step 319: 273798 + 861 = 274659
Step 320: 274659 + 861 = 275520
Step 321: 275520 + 861 = 276381
Step 322: 276381 + 861 = 277242
Step 323: 277242 + 861 = 278103
Step 324: 278103 + 861 = 278964
Step 325: 278964 + 861 = 279825
Step 326: 279825 + 861 = 280686
Step 327: 280686 + 861 = 281547
Step 328: 281547 + 861 = 282408
Step 329: 282408 + 861 = 283269
Step 330: 283269 + 861 = 284130
Step 331: 284130 + 861 = 284991
Step 332: 284991 + 861 = 285852
Step 333: 285852 + 861 = 286713
Step 334: 286713 + 861 = 287574
Step 335: 287574 + 861 = 288435
Step 336: 288435 + 861 = 289296
Step 337: 289296 + 861 = 290157
Step 338: 290157 + 861 = 291018
Step 339: 291018 + 861 = 291879
Step 340: 291879 + 861 = 292740
Step 341: 292740 + 861 = 293601
Step 342: 293601 + 861 = 294462
Step 343: 294462 + 861 = 295323
Step 344: 295323 + 861 = 296184
Step 345: 296184 + 861 = 297045
Step 346: 297045 + 861 = 297906
Step 347: 297906 + 861 = 298767
Step 348: 298767 + 861 = 299628
Step 349: 299628 + 861 = 300489
Step 350: 300489 + 861 = 301350
Step 351: 301350 + 861 = 302211
Step 352: 302211 + 861 = 303072
Step 353: 303072 + 861 = 303933
Step 354: 303933 + 861 = 304794
Step 355: 304794 + 861 = 305655
Step 356: 305655 + 861 = 306516
Step 357: 306516 + 861 = 307377
Step 358: 307377 + 861 = 308238
Step 359: 308238 + 861 = 309099
Step 360: 309099 + 861 = 309960
Step 361: 309960 + 861 = 310821
Step 362: 310821 + 861 = 311682
Step 363: 311682 + 861 = 312543
Step 364: 312543 + 861 = 313404
Step 365: 313404 + 861 = 314265
Step 366: 314265 + 861 = 315126
Step 367: 315126 + 861 = 315987
Step 368: 315987 + 861 = 316848
Step 369: 316848 + 861 = 317709
Step 370: 317709 + 861 = 318570
Step 371: 318570 + 861 = 319431
Step 372: 319431 + 861 = 320292
Step 373: 320292 + 861 = 321153
Step 374: 321153 + 861 = 322014
Step 375: 322014 + 861 = 322875
Step 376: 322875 + 861 = 323736
Step 377: 323736 + 861 = 324597
Step 378: 324597 + 861 = 325458
Step 379: 325458 + 861 = 326319
Step 380: 326319 + 861 = 327180
Step 381: 327180 + 861 = 328041
Step 382: 328041 + 861 = 328902
Step 383: 328902 + 861 = 329763
Step 384: 329763 + 861 = 330624
Step 385: 330624 + 861 = 331485
Step 386: 331485 + 861 = 332346
Step 387: 332346 + 861 = 333207
Step 388: 333207 + 861 = 334068
Step 389: 334068 + 861 = 334929
Step 390: 334929 + 861 = 335790
Step 391: 335790 + 861 = 336651
Step 392: 336651 + 861 = 337512
Step 393: 337512 + 861 = 338373
Step 394: 338373 + 861 = 339234
Step 395: 339234 + 861 = 340095
Step 396: 340095 + 861 = 340956
Step 397: 340956 + 861 = 341817
Step 398: 341817 + 861 = 342678
Step 399: 342678 + 861 = 343539
Step 400: 343539 + 861 = 344400
Step 401: 344400 + 861 = 345261
Step 402: 345261 + 861 = 346122
Step 403: 346122 + 861 = 346983
Step 404: 346983 + 861 = 347844

So, 861*404 = 347844