Sure thing, let's get straight to it. We start with 807 and we're going to multiply it by 406, which means adding 807 to itself 406 times.
Step 1: 0 + 807 = 807
Step 2: 807 + 807 = 1614
Step 3: 1614 + 807 = 2421
Step 4: 2421 + 807 = 3228
Step 5: 3228 + 807 = 4035
Step 6: 4035 + 807 = 4842
Step 7: 4842 + 807 = 5649
Step 8: 5649 + 807 = 6456
Step 9: 6456 + 807 = 7263
Step 10: 7263 + 807 = 8070
Step 11: 8070 + 807 = 8877
Step 12: 8877 + 807 = 9684
Step 13: 9684 + 807 = 10491
Step 14: 10491 + 807 = 11298
Step 15: 11298 + 807 = 12105
Step 16: 12105 + 807 = 12912
Step 17: 12912 + 807 = 13719
Step 18: 13719 + 807 = 14526
Step 19: 14526 + 807 = 15333
Step 20: 15333 + 807 = 16140
Step 21: 16140 + 807 = 16947
Step 22: 16947 + 807 = 17754
Step 23: 17754 + 807 = 18561
Step 24: 18561 + 807 = 19368
Step 25: 19368 + 807 = 20175
Step 26: 20175 + 807 = 20982
Step 27: 20982 + 807 = 21789
Step 28: 21789 + 807 = 22596
Step 29: 22596 + 807 = 23403
Step 30: 23403 + 807 = 24210
Step 31: 24210 + 807 = 25017
Step 32: 25017 + 807 = 25824
Step 33: 25824 + 807 = 26631
Step 34: 26631 + 807 = 27438
Step 35: 27438 + 807 = 28245
Step 36: 28245 + 807 = 29052
Step 37: 29052 + 807 = 29859
Step 38: 29859 + 807 = 30666
Step 39: 30666 + 807 = 31473
Step 40: 31473 + 807 = 32280
Step 41: 32280 + 807 = 33087
Step 42: 33087 + 807 = 33894
Step 43: 33894 + 807 = 34701
Step 44: 34701 + 807 = 35508
Step 45: 35508 + 807 = 36315
Step 46: 36315 + 807 = 37122
Step 47: 37122 + 807 = 37929
Step 48: 37929 + 807 = 38736
Step 49: 38736 + 807 = 39543
Step 50: 39543 + 807 = 40350
Step 51: 40350 + 807 = 41157
Step 52: 41157 + 807 = 41964
Step 53: 41964 + 807 = 42771
Step 54: 42771 + 807 = 43578
Step 55: 43578 + 807 = 44385
Step 56: 44385 + 807 = 45192
Step 57: 45192 + 807 = 45999
Step 58: 45999 + 807 = 46806
Step 59: 46806 + 807 = 47613
Step 60: 47613 + 807 = 48420
Step 61: 48420 + 807 = 49227
Step 62: 49227 + 807 = 50034
Step 63: 50034 + 807 = 50841
Step 64: 50841 + 807 = 51648
Step 65: 51648 + 807 = 52455
Step 66: 52455 + 807 = 53262
Step 67: 53262 + 807 = 54069
Step 68: 54069 + 807 = 54876
Step 69: 54876 + 807 = 55683
Step 70: 55683 + 807 = 56490
Step 71: 56490 + 807 = 57297
Step 72: 57297 + 807 = 58104
Step 73: 58104 + 807 = 58911
Step 74: 58911 + 807 = 59718
Step 75: 59718 + 807 = 60525
Step 76: 60525 + 807 = 61332
Step 77: 61332 + 807 = 62139
Step 78: 62139 + 807 = 62946
Step 79: 62946 + 807 = 63753
Step 80: 63753 + 807 = 64560
Step 81: 64560 + 807 = 65367
Step 82: 65367 + 807 = 66174
Step 83: 66174 + 807 = 66981
Step 84: 66981 + 807 = 67788
Step 85: 67788 + 807 = 68595
Step 86: 68595 + 807 = 69402
Step 87: 69402 + 807 = 70209
Step 88: 70209 + 807 = 71016
Step 89: 71016 + 807 = 71823
Step 90: 71823 + 807 = 72630
Step 91: 72630 + 807 = 73437
Step 92: 73437 + 807 = 74244
Step 93: 74244 + 807 = 75051
Step 94: 75051 + 807 = 75858
Step 95: 75858 + 807 = 76665
Step 96: 76665 + 807 = 77472
Step 97: 77472 + 807 = 78279
Step 98: 78279 + 807 = 79086
Step 99: 79086 + 807 = 79893
Step 100: 79893 + 807 = 80700
Step 101: 80700 + 807 = 81507
Step 102: 81507 + 807 = 82314
Step 103: 82314 + 807 = 83121
Step 104: 83121 + 807 = 83928
Step 105: 83928 + 807 = 84735
Step 106: 84735 + 807 = 85542
Step 107: 85542 + 807 = 86349
Step 108: 86349 + 807 = 87156
Step 109: 87156 + 807 = 87963
Step 110: 87963 + 807 = 88770
Step 111: 88770 + 807 = 89577
Step 112: 89577 + 807 = 90384
Step 113: 90384 + 807 = 91191
Step 114: 91191 + 807 = 91998
Step 115: 91998 + 807 = 92805
Step 116: 92805 + 807 = 93612
Step 117: 93612 + 807 = 94419
Step 118: 94419 + 807 = 95226
Step 119: 95226 + 807 = 96033
Step 120: 96033 + 807 = 96840
Step 121: 96840 + 807 = 97647
Step 122: 97647 + 807 = 98454
Step 123: 98454 + 807 = 99261
Step 124: 99261 + 807 = 100068
Step 125: 100068 + 807 = 100875
Step 126: 100875 + 807 = 101682
Step 127: 101682 + 807 = 102489
Step 128: 102489 + 807 = 103296
Step 129: 103296 + 807 = 104103
Step 130: 104103 + 807 = 104910
Step 131: 104910 + 807 = 105717
Step 132: 105717 + 807 = 106524
Step 133: 106524 + 807 = 107331
Step 134: 107331 + 807 = 108138
Step 135: 108138 + 807 = 108945
Step 136: 108945 + 807 = 109752
Step 137: 109752 + 807 = 110559
Step 138: 110559 + 807 = 111366
Step 139: 111366 + 807 = 112173
Step 140: 112173 + 807 = 112980
Step 141: 112980 + 807 = 113787
Step 142: 113787 + 807 = 114594
Step 143: 114594 + 807 = 115401
Step 144: 115401 + 807 = 116208
Step 145: 116208 + 807 = 117015
Step 146: 117015 + 807 = 117822
Step 147: 117822 + 807 = 118629
Step 148: 118629 + 807 = 119436
Step 149: 119436 + 807 = 120243
Step 150: 120243 + 807 = 121050
Step 151: 121050 + 807 = 121857
Step 152: 121857 + 807 = 122664
Step 153: 122664 + 807 = 123471
Step 154: 123471 + 807 = 124278
Step 155: 124278 + 807 = 125085
Step 156: 125085 + 807 = 125892
Step 157: 125892 + 807 = 126699
Step 158: 126699 + 807 = 127506
Step 159: 127506 + 807 = 128313
Step 160: 128313 + 807 = 129120
Step 161: 129120 + 807 = 129927
Step 162: 129927 + 807 = 130734
Step 163: 130734 + 807 = 131541
Step 164: 131541 + 807 = 132348
Step 165: 132348 + 807 = 133155
Step 166: 133155 + 807 = 133962
Step 167: 133962 + 807 = 134769
Step 168: 134769 + 807 = 135576
Step 169: 135576 + 807 = 136383
Step 170: 136383 + 807 = 137190
Step 171: 137190 + 807 = 137997
Step 172: 137997 + 807 = 138804
Step 173: 138804 + 807 = 139611
Step 174: 139611 + 807 = 140418
Step 175: 140418 + 807 = 141225
Step 176: 141225 + 807 = 142032
Step 177: 142032 + 807 = 142839
Step 178: 142839 + 807 = 143646
Step 179: 143646 + 807 = 144453
Step 180: 144453 + 807 = 145260
Step 181: 145260 + 807 = 146067
Step 182: 146067 + 807 = 146874
Step 183: 146874 + 807 = 147681
Step 184: 147681 + 807 = 148488
Step 185: 148488 + 807 = 149295
Step 186: 149295 + 807 = 150102
Step 187: 150102 + 807 = 150909
Step 188: 150909 + 807 = 151716
Step 189: 151716 + 807 = 152523
Step 190: 152523 + 807 = 153330
Step 191: 153330 + 807 = 154137
Step 192: 154137 + 807 = 154944
Step 193: 154944 + 807 = 155751
Step 194: 155751 + 807 = 156558
Step 195: 156558 + 807 = 157365
Step 196: 157365 + 807 = 158172
Step 197: 158172 + 807 = 158979
Step 198: 158979 + 807 = 159786
Step 199: 159786 + 807 = 160593
Step 200: 160593 + 807 = 161400
Step 201: 161400 + 807 = 162207
Step 202: 162207 + 807 = 163014
Step 203: 163014 + 807 = 163821
Step 204: 163821 + 807 = 164628
Step 205: 164628 + 807 = 165435
Step 206: 165435 + 807 = 166242
Step 207: 166242 + 807 = 167049
Step 208: 167049 + 807 = 167856
Step 209: 167856 + 807 = 168663
Step 210: 168663 + 807 = 169470
Step 211: 169470 + 807 = 170277
Step 212: 170277 + 807 = 171084
Step 213: 171084 + 807 = 171891
Step 214: 171891 + 807 = 172698
Step 215: 172698 + 807 = 173505
Step 216: 173505 + 807 = 174312
Step 217: 174312 + 807 = 175119
Step 218: 175119 + 807 = 175926
Step 219: 175926 + 807 = 176733
Step 220: 176733 + 807 = 177540
Step 221: 177540 + 807 = 178347
Step 222: 178347 + 807 = 179154
Step 223: 179154 + 807 = 179961
Step 224: 179961 + 807 = 180768
Step 225: 180768 + 807 = 181575
Step 226: 181575 + 807 = 182382
Step 227: 182382 + 807 = 183189
Step 228: 183189 + 807 = 183996
Step 229: 183996 + 807 = 184803
Step 230: 184803 + 807 = 185610
Step 231: 185610 + 807 = 186417
Step 232: 186417 + 807 = 187224
Step 233: 187224 + 807 = 188031
Step 234: 188031 + 807 = 188838
Step 235: 188838 + 807 = 189645
Step 236: 189645 + 807 = 190452
Step 237: 190452 + 807 = 191259
Step 238: 191259 + 807 = 192066
Step 239: 192066 + 807 = 192873
Step 240: 192873 + 807 = 193680
Step 241: 193680 + 807 = 194487
Step 242: 194487 + 807 = 195294
Step 243: 195294 + 807 = 196101
Step 244: 196101 + 807 = 196908
Step 245: 196908 + 807 = 197715
Step 246: 197715 + 807 = 198522
Step 247: 198522 + 807 = 199329
Step 248: 199329 + 807 = 200136
Step 249: 200136 + 807 = 200943
Step 250: 200943 + 807 = 201750
Step 251: 201750 + 807 = 202557
Step 252: 202557 + 807 = 203364
Step 253: 203364 + 807 = 204171
Step 254: 204171 + 807 = 204978
Step 255: 204978 + 807 = 205785
Step 256: 205785 + 807 = 206592
Step 257: 206592 + 807 = 207399
Step 258: 207399 + 807 = 208206
Step 259: 208206 + 807 = 209013
Step 260: 209013 + 807 = 209820
Step 261: 209820 + 807 = 210627
Step 262: 210627 + 807 = 211434
Step 263: 211434 + 807 = 212241
Step 264: 212241 + 807 = 213048
Step 265: 213048 + 807 = 213855
Step 266: 213855 + 807 = 214662
Step 267: 214662 + 807 = 215469
Step 268: 215469 + 807 = 216276
Step 269: 216276 + 807 = 217083
Step 270: 217083 + 807 = 217890
Step 271: 217890 + 807 = 218697
Step 272: 218697 + 807 = 219504
Step 273: 219504 + 807 = 220311
Step 274: 220311 + 807 = 221118
Step 275: 221118 + 807 = 221925
Step 276: 221925 + 807 = 222732
Step 277: 222732 + 807 = 223539
Step 278: 223539 + 807 = 224346
Step 279: 224346 + 807 = 225153
Step 280: 225153 + 807 = 225960
Step 281: 225960 + 807 = 226767
Step 282: 226767 + 807 = 227574
Step 283: 227574 + 807 = 228381
Step 284: 228381 + 807 = 229188
Step 285: 229188 + 807 = 229995
Step 286: 229995 + 807 = 230802
Step 287: 230802 + 807 = 231609
Step 288: 231609 + 807 = 232416
Step 289: 232416 + 807 = 233223
Step 290: 233223 + 807 = 234030
Step 291: 234030 + 807 = 234837
Step 292: 234837 + 807 = 235644
Step 293: 235644 + 807 = 236451
Step 294: 236451 + 807 = 237258
Step 295: 237258 + 807 = 238065
Step 296: 238065 + 807 = 238872
Step 297: 238872 + 807 = 239679
Step 298: 239679 + 807 = 240486
Step 299: 240486 + 807 = 241293
Step 300: 241293 + 807 = 242100
Step 301: 242100 + 807 = 242907
Step 302: 242907 + 807 = 243714
Step 303: 243714 + 807 = 244521
Step 304: 244521 + 807 = 245328
Step 305: 245328 + 807 = 246135
Step 306: 246135 + 807 = 246942
Step 307: 246942 + 807 = 247749
Step 308: 247749 + 807 = 248556
Step 309: 248556 + 807 = 249363
Step 310: 249363 + 807 = 250170
Step 311: 250170 + 807 = 250977
Step 312: 250977 + 807 = 251784
Step 313: 251784 + 807 = 252591
Step 314: 252591 + 807 = 253398
Step 315: 253398 + 807 = 254205
Step 316: 254205 + 807 = 255012
Step 317: 255012 + 807 = 255819
Step 318: 255819 + 807 = 256626
Step 319: 256626 + 807 = 257433
Step 320: 257433 + 807 = 258240
Step 321: 258240 + 807 = 259047
Step 322: 259047 + 807 = 259854
Step 323: 259854 + 807 = 260661
Step 324: 260661 + 807 = 261468
Step 325: 261468 + 807 = 262275
Step 326: 262275 + 807 = 263082
Step 327: 263082 + 807 = 263889
Step 328: 263889 + 807 = 264696
Step 329: 264696 + 807 = 265503
Step 330: 265503 + 807 = 266310
Step 331: 266310 + 807 = 267117
Step 332: 267117 + 807 = 267924
Step 333: 267924 + 807 = 268731
Step 334: 268731 + 807 = 269538
Step 335: 269538 + 807 = 270345
Step 336: 270345 + 807 = 271152
Step 337: 271152 + 807 = 271959
Step 338: 271959 + 807 = 272766
Step 339: 272766 + 807 = 273573
Step 340: 273573 + 807 = 274380
Step 341: 274380 + 807 = 275187
Step 342: 275187 + 807 = 275994
Step 343: 275994 + 807 = 276801
Step 344: 276801 + 807 = 277608
Step 345: 277608 + 807 = 278415
Step 346: 278415 + 807 = 279222
Step 347: 279222 + 807 = 280029
Step 348: 280029 + 807 = 280836
Step 349: 280836 + 807 = 281643
Step 350: 281643 + 807 = 282450
Step 351: 282450 + 807 = 283257
Step 352: 283257 + 807 = 284064
Step 353: 284064 + 807 = 284871
Step 354: 284871 + 807 = 285678
Step 355: 285678 + 807 = 286485
Step 356: 286485 + 807 = 287292
Step 357: 287292 + 807 = 288099
Step 358: 288099 + 807 = 288906
Step 359: 288906 + 807 = 289713
Step 360: 289713 + 807 = 290520
Step 361: 290520 + 807 = 291327
Step 362: 291327 + 807 = 292134
Step 363: 292134 + 807 = 292941
Step 364: 292941 + 807 = 293748
Step 365: 293748 + 807 = 294555
Step 366: 294555 + 807 = 295362
Step 367: 295362 + 807 = 296169
Step 368: 296169 + 807 = 296976
Step 369: 296976 + 807 = 297783
Step 370: 297783 + 807 = 298590
Step 371: 298590 + 807 = 299397
Step 372: 299397 + 807 = 300204
Step 373: 300204 + 807 = 301011
Step 374: 301011 + 807 = 301818
Step 375: 301818 + 807 = 302625
Step 376: 302625 + 807 = 303432
Step 377: 303432 + 807 = 304239
Step 378: 304239 + 807 = 305046
Step 379: 305046 + 807 = 305853
Step 380: 305853 + 807 = 306660
Step 381: 306660 + 807 = 307467
Step 382: 307467 + 807 = 308274
Step 383: 308274 + 807 = 309081
Step 384: 309081 + 807 = 309888
Step 385: 309888 + 807 = 310695
Step 386: 310695 + 807 = 311502
Step 387: 311502 + 807 = 312309
Step 388: 312309 + 807 = 313116
Step 389: 313116 + 807 = 313923
Step 390: 313923 + 807 = 314730
Step 391: 314730 + 807 = 315537
Step 392: 315537 + 807 = 316344
Step 393: 316344 + 807 = 317151
Step 394: 317151 + 807 = 317958
Step 395: 317958 + 807 = 318765
Step 396: 318765 + 807 = 319572
Step 397: 319572 + 807 = 320379
Step 398: 320379 + 807 = 321186
Step 399: 321186 + 807 = 321993
Step 400: 321993 + 807 = 322800
Step 401: 322800 + 807 = 323607
Step 402: 323607 + 807 = 324414
Step 403: 324414 + 807 = 325221
Step 404: 325221 + 807 = 326028
Step 405: 326028 + 807 = 326835
Step 406: 326835 + 807 = 327642

So, 807*406 = 327642