OK, let's work through this together. We're starting with 669 and we're going to multiply it by 430, which means we add 669 to itself 430 times.
Step 1: 0 + 669 = 669
Step 2: 669 + 669 = 1338
Step 3: 1338 + 669 = 2007
Step 4: 2007 + 669 = 2676
Step 5: 2676 + 669 = 3345
Step 6: 3345 + 669 = 4014
Step 7: 4014 + 669 = 4683
Step 8: 4683 + 669 = 5352
Step 9: 5352 + 669 = 6021
Step 10: 6021 + 669 = 6690
Step 11: 6690 + 669 = 7359
Step 12: 7359 + 669 = 8028
Step 13: 8028 + 669 = 8697
Step 14: 8697 + 669 = 9366
Step 15: 9366 + 669 = 10035
Step 16: 10035 + 669 = 10704
Step 17: 10704 + 669 = 11373
Step 18: 11373 + 669 = 12042
Step 19: 12042 + 669 = 12711
Step 20: 12711 + 669 = 13380
Step 21: 13380 + 669 = 14049
Step 22: 14049 + 669 = 14718
Step 23: 14718 + 669 = 15387
Step 24: 15387 + 669 = 16056
Step 25: 16056 + 669 = 16725
Step 26: 16725 + 669 = 17394
Step 27: 17394 + 669 = 18063
Step 28: 18063 + 669 = 18732
Step 29: 18732 + 669 = 19401
Step 30: 19401 + 669 = 20070
Step 31: 20070 + 669 = 20739
Step 32: 20739 + 669 = 21408
Step 33: 21408 + 669 = 22077
Step 34: 22077 + 669 = 22746
Step 35: 22746 + 669 = 23415
Step 36: 23415 + 669 = 24084
Step 37: 24084 + 669 = 24753
Step 38: 24753 + 669 = 25422
Step 39: 25422 + 669 = 26091
Step 40: 26091 + 669 = 26760
Step 41: 26760 + 669 = 27429
Step 42: 27429 + 669 = 28098
Step 43: 28098 + 669 = 28767
Step 44: 28767 + 669 = 29436
Step 45: 29436 + 669 = 30105
Step 46: 30105 + 669 = 30774
Step 47: 30774 + 669 = 31443
Step 48: 31443 + 669 = 32112
Step 49: 32112 + 669 = 32781
Step 50: 32781 + 669 = 33450
Step 51: 33450 + 669 = 34119
Step 52: 34119 + 669 = 34788
Step 53: 34788 + 669 = 35457
Step 54: 35457 + 669 = 36126
Step 55: 36126 + 669 = 36795
Step 56: 36795 + 669 = 37464
Step 57: 37464 + 669 = 38133
Step 58: 38133 + 669 = 38802
Step 59: 38802 + 669 = 39471
Step 60: 39471 + 669 = 40140
Step 61: 40140 + 669 = 40809
Step 62: 40809 + 669 = 41478
Step 63: 41478 + 669 = 42147
Step 64: 42147 + 669 = 42816
Step 65: 42816 + 669 = 43485
Step 66: 43485 + 669 = 44154
Step 67: 44154 + 669 = 44823
Step 68: 44823 + 669 = 45492
Step 69: 45492 + 669 = 46161
Step 70: 46161 + 669 = 46830
Step 71: 46830 + 669 = 47499
Step 72: 47499 + 669 = 48168
Step 73: 48168 + 669 = 48837
Step 74: 48837 + 669 = 49506
Step 75: 49506 + 669 = 50175
Step 76: 50175 + 669 = 50844
Step 77: 50844 + 669 = 51513
Step 78: 51513 + 669 = 52182
Step 79: 52182 + 669 = 52851
Step 80: 52851 + 669 = 53520
Step 81: 53520 + 669 = 54189
Step 82: 54189 + 669 = 54858
Step 83: 54858 + 669 = 55527
Step 84: 55527 + 669 = 56196
Step 85: 56196 + 669 = 56865
Step 86: 56865 + 669 = 57534
Step 87: 57534 + 669 = 58203
Step 88: 58203 + 669 = 58872
Step 89: 58872 + 669 = 59541
Step 90: 59541 + 669 = 60210
Step 91: 60210 + 669 = 60879
Step 92: 60879 + 669 = 61548
Step 93: 61548 + 669 = 62217
Step 94: 62217 + 669 = 62886
Step 95: 62886 + 669 = 63555
Step 96: 63555 + 669 = 64224
Step 97: 64224 + 669 = 64893
Step 98: 64893 + 669 = 65562
Step 99: 65562 + 669 = 66231
Step 100: 66231 + 669 = 66900
Step 101: 66900 + 669 = 67569
Step 102: 67569 + 669 = 68238
Step 103: 68238 + 669 = 68907
Step 104: 68907 + 669 = 69576
Step 105: 69576 + 669 = 70245
Step 106: 70245 + 669 = 70914
Step 107: 70914 + 669 = 71583
Step 108: 71583 + 669 = 72252
Step 109: 72252 + 669 = 72921
Step 110: 72921 + 669 = 73590
Step 111: 73590 + 669 = 74259
Step 112: 74259 + 669 = 74928
Step 113: 74928 + 669 = 75597
Step 114: 75597 + 669 = 76266
Step 115: 76266 + 669 = 76935
Step 116: 76935 + 669 = 77604
Step 117: 77604 + 669 = 78273
Step 118: 78273 + 669 = 78942
Step 119: 78942 + 669 = 79611
Step 120: 79611 + 669 = 80280
Step 121: 80280 + 669 = 80949
Step 122: 80949 + 669 = 81618
Step 123: 81618 + 669 = 82287
Step 124: 82287 + 669 = 82956
Step 125: 82956 + 669 = 83625
Step 126: 83625 + 669 = 84294
Step 127: 84294 + 669 = 84963
Step 128: 84963 + 669 = 85632
Step 129: 85632 + 669 = 86301
Step 130: 86301 + 669 = 86970
Step 131: 86970 + 669 = 87639
Step 132: 87639 + 669 = 88308
Step 133: 88308 + 669 = 88977
Step 134: 88977 + 669 = 89646
Step 135: 89646 + 669 = 90315
Step 136: 90315 + 669 = 90984
Step 137: 90984 + 669 = 91653
Step 138: 91653 + 669 = 92322
Step 139: 92322 + 669 = 92991
Step 140: 92991 + 669 = 93660
Step 141: 93660 + 669 = 94329
Step 142: 94329 + 669 = 94998
Step 143: 94998 + 669 = 95667
Step 144: 95667 + 669 = 96336
Step 145: 96336 + 669 = 97005
Step 146: 97005 + 669 = 97674
Step 147: 97674 + 669 = 98343
Step 148: 98343 + 669 = 99012
Step 149: 99012 + 669 = 99681
Step 150: 99681 + 669 = 100350
Step 151: 100350 + 669 = 101019
Step 152: 101019 + 669 = 101688
Step 153: 101688 + 669 = 102357
Step 154: 102357 + 669 = 103026
Step 155: 103026 + 669 = 103695
Step 156: 103695 + 669 = 104364
Step 157: 104364 + 669 = 105033
Step 158: 105033 + 669 = 105702
Step 159: 105702 + 669 = 106371
Step 160: 106371 + 669 = 107040
Step 161: 107040 + 669 = 107709
Step 162: 107709 + 669 = 108378
Step 163: 108378 + 669 = 109047
Step 164: 109047 + 669 = 109716
Step 165: 109716 + 669 = 110385
Step 166: 110385 + 669 = 111054
Step 167: 111054 + 669 = 111723
Step 168: 111723 + 669 = 112392
Step 169: 112392 + 669 = 113061
Step 170: 113061 + 669 = 113730
Step 171: 113730 + 669 = 114399
Step 172: 114399 + 669 = 115068
Step 173: 115068 + 669 = 115737
Step 174: 115737 + 669 = 116406
Step 175: 116406 + 669 = 117075
Step 176: 117075 + 669 = 117744
Step 177: 117744 + 669 = 118413
Step 178: 118413 + 669 = 119082
Step 179: 119082 + 669 = 119751
Step 180: 119751 + 669 = 120420
Step 181: 120420 + 669 = 121089
Step 182: 121089 + 669 = 121758
Step 183: 121758 + 669 = 122427
Step 184: 122427 + 669 = 123096
Step 185: 123096 + 669 = 123765
Step 186: 123765 + 669 = 124434
Step 187: 124434 + 669 = 125103
Step 188: 125103 + 669 = 125772
Step 189: 125772 + 669 = 126441
Step 190: 126441 + 669 = 127110
Step 191: 127110 + 669 = 127779
Step 192: 127779 + 669 = 128448
Step 193: 128448 + 669 = 129117
Step 194: 129117 + 669 = 129786
Step 195: 129786 + 669 = 130455
Step 196: 130455 + 669 = 131124
Step 197: 131124 + 669 = 131793
Step 198: 131793 + 669 = 132462
Step 199: 132462 + 669 = 133131
Step 200: 133131 + 669 = 133800
Step 201: 133800 + 669 = 134469
Step 202: 134469 + 669 = 135138
Step 203: 135138 + 669 = 135807
Step 204: 135807 + 669 = 136476
Step 205: 136476 + 669 = 137145
Step 206: 137145 + 669 = 137814
Step 207: 137814 + 669 = 138483
Step 208: 138483 + 669 = 139152
Step 209: 139152 + 669 = 139821
Step 210: 139821 + 669 = 140490
Step 211: 140490 + 669 = 141159
Step 212: 141159 + 669 = 141828
Step 213: 141828 + 669 = 142497
Step 214: 142497 + 669 = 143166
Step 215: 143166 + 669 = 143835
Step 216: 143835 + 669 = 144504
Step 217: 144504 + 669 = 145173
Step 218: 145173 + 669 = 145842
Step 219: 145842 + 669 = 146511
Step 220: 146511 + 669 = 147180
Step 221: 147180 + 669 = 147849
Step 222: 147849 + 669 = 148518
Step 223: 148518 + 669 = 149187
Step 224: 149187 + 669 = 149856
Step 225: 149856 + 669 = 150525
Step 226: 150525 + 669 = 151194
Step 227: 151194 + 669 = 151863
Step 228: 151863 + 669 = 152532
Step 229: 152532 + 669 = 153201
Step 230: 153201 + 669 = 153870
Step 231: 153870 + 669 = 154539
Step 232: 154539 + 669 = 155208
Step 233: 155208 + 669 = 155877
Step 234: 155877 + 669 = 156546
Step 235: 156546 + 669 = 157215
Step 236: 157215 + 669 = 157884
Step 237: 157884 + 669 = 158553
Step 238: 158553 + 669 = 159222
Step 239: 159222 + 669 = 159891
Step 240: 159891 + 669 = 160560
Step 241: 160560 + 669 = 161229
Step 242: 161229 + 669 = 161898
Step 243: 161898 + 669 = 162567
Step 244: 162567 + 669 = 163236
Step 245: 163236 + 669 = 163905
Step 246: 163905 + 669 = 164574
Step 247: 164574 + 669 = 165243
Step 248: 165243 + 669 = 165912
Step 249: 165912 + 669 = 166581
Step 250: 166581 + 669 = 167250
Step 251: 167250 + 669 = 167919
Step 252: 167919 + 669 = 168588
Step 253: 168588 + 669 = 169257
Step 254: 169257 + 669 = 169926
Step 255: 169926 + 669 = 170595
Step 256: 170595 + 669 = 171264
Step 257: 171264 + 669 = 171933
Step 258: 171933 + 669 = 172602
Step 259: 172602 + 669 = 173271
Step 260: 173271 + 669 = 173940
Step 261: 173940 + 669 = 174609
Step 262: 174609 + 669 = 175278
Step 263: 175278 + 669 = 175947
Step 264: 175947 + 669 = 176616
Step 265: 176616 + 669 = 177285
Step 266: 177285 + 669 = 177954
Step 267: 177954 + 669 = 178623
Step 268: 178623 + 669 = 179292
Step 269: 179292 + 669 = 179961
Step 270: 179961 + 669 = 180630
Step 271: 180630 + 669 = 181299
Step 272: 181299 + 669 = 181968
Step 273: 181968 + 669 = 182637
Step 274: 182637 + 669 = 183306
Step 275: 183306 + 669 = 183975
Step 276: 183975 + 669 = 184644
Step 277: 184644 + 669 = 185313
Step 278: 185313 + 669 = 185982
Step 279: 185982 + 669 = 186651
Step 280: 186651 + 669 = 187320
Step 281: 187320 + 669 = 187989
Step 282: 187989 + 669 = 188658
Step 283: 188658 + 669 = 189327
Step 284: 189327 + 669 = 189996
Step 285: 189996 + 669 = 190665
Step 286: 190665 + 669 = 191334
Step 287: 191334 + 669 = 192003
Step 288: 192003 + 669 = 192672
Step 289: 192672 + 669 = 193341
Step 290: 193341 + 669 = 194010
Step 291: 194010 + 669 = 194679
Step 292: 194679 + 669 = 195348
Step 293: 195348 + 669 = 196017
Step 294: 196017 + 669 = 196686
Step 295: 196686 + 669 = 197355
Step 296: 197355 + 669 = 198024
Step 297: 198024 + 669 = 198693
Step 298: 198693 + 669 = 199362
Step 299: 199362 + 669 = 200031
Step 300: 200031 + 669 = 200700
Step 301: 200700 + 669 = 201369
Step 302: 201369 + 669 = 202038
Step 303: 202038 + 669 = 202707
Step 304: 202707 + 669 = 203376
Step 305: 203376 + 669 = 204045
Step 306: 204045 + 669 = 204714
Step 307: 204714 + 669 = 205383
Step 308: 205383 + 669 = 206052
Step 309: 206052 + 669 = 206721
Step 310: 206721 + 669 = 207390
Step 311: 207390 + 669 = 208059
Step 312: 208059 + 669 = 208728
Step 313: 208728 + 669 = 209397
Step 314: 209397 + 669 = 210066
Step 315: 210066 + 669 = 210735
Step 316: 210735 + 669 = 211404
Step 317: 211404 + 669 = 212073
Step 318: 212073 + 669 = 212742
Step 319: 212742 + 669 = 213411
Step 320: 213411 + 669 = 214080
Step 321: 214080 + 669 = 214749
Step 322: 214749 + 669 = 215418
Step 323: 215418 + 669 = 216087
Step 324: 216087 + 669 = 216756
Step 325: 216756 + 669 = 217425
Step 326: 217425 + 669 = 218094
Step 327: 218094 + 669 = 218763
Step 328: 218763 + 669 = 219432
Step 329: 219432 + 669 = 220101
Step 330: 220101 + 669 = 220770
Step 331: 220770 + 669 = 221439
Step 332: 221439 + 669 = 222108
Step 333: 222108 + 669 = 222777
Step 334: 222777 + 669 = 223446
Step 335: 223446 + 669 = 224115
Step 336: 224115 + 669 = 224784
Step 337: 224784 + 669 = 225453
Step 338: 225453 + 669 = 226122
Step 339: 226122 + 669 = 226791
Step 340: 226791 + 669 = 227460
Step 341: 227460 + 669 = 228129
Step 342: 228129 + 669 = 228798
Step 343: 228798 + 669 = 229467
Step 344: 229467 + 669 = 230136
Step 345: 230136 + 669 = 230805
Step 346: 230805 + 669 = 231474
Step 347: 231474 + 669 = 232143
Step 348: 232143 + 669 = 232812
Step 349: 232812 + 669 = 233481
Step 350: 233481 + 669 = 234150
Step 351: 234150 + 669 = 234819
Step 352: 234819 + 669 = 235488
Step 353: 235488 + 669 = 236157
Step 354: 236157 + 669 = 236826
Step 355: 236826 + 669 = 237495
Step 356: 237495 + 669 = 238164
Step 357: 238164 + 669 = 238833
Step 358: 238833 + 669 = 239502
Step 359: 239502 + 669 = 240171
Step 360: 240171 + 669 = 240840
Step 361: 240840 + 669 = 241509
Step 362: 241509 + 669 = 242178
Step 363: 242178 + 669 = 242847
Step 364: 242847 + 669 = 243516
Step 365: 243516 + 669 = 244185
Step 366: 244185 + 669 = 244854
Step 367: 244854 + 669 = 245523
Step 368: 245523 + 669 = 246192
Step 369: 246192 + 669 = 246861
Step 370: 246861 + 669 = 247530
Step 371: 247530 + 669 = 248199
Step 372: 248199 + 669 = 248868
Step 373: 248868 + 669 = 249537
Step 374: 249537 + 669 = 250206
Step 375: 250206 + 669 = 250875
Step 376: 250875 + 669 = 251544
Step 377: 251544 + 669 = 252213
Step 378: 252213 + 669 = 252882
Step 379: 252882 + 669 = 253551
Step 380: 253551 + 669 = 254220
Step 381: 254220 + 669 = 254889
Step 382: 254889 + 669 = 255558
Step 383: 255558 + 669 = 256227
Step 384: 256227 + 669 = 256896
Step 385: 256896 + 669 = 257565
Step 386: 257565 + 669 = 258234
Step 387: 258234 + 669 = 258903
Step 388: 258903 + 669 = 259572
Step 389: 259572 + 669 = 260241
Step 390: 260241 + 669 = 260910
Step 391: 260910 + 669 = 261579
Step 392: 261579 + 669 = 262248
Step 393: 262248 + 669 = 262917
Step 394: 262917 + 669 = 263586
Step 395: 263586 + 669 = 264255
Step 396: 264255 + 669 = 264924
Step 397: 264924 + 669 = 265593
Step 398: 265593 + 669 = 266262
Step 399: 266262 + 669 = 266931
Step 400: 266931 + 669 = 267600
Step 401: 267600 + 669 = 268269
Step 402: 268269 + 669 = 268938
Step 403: 268938 + 669 = 269607
Step 404: 269607 + 669 = 270276
Step 405: 270276 + 669 = 270945
Step 406: 270945 + 669 = 271614
Step 407: 271614 + 669 = 272283
Step 408: 272283 + 669 = 272952
Step 409: 272952 + 669 = 273621
Step 410: 273621 + 669 = 274290
Step 411: 274290 + 669 = 274959
Step 412: 274959 + 669 = 275628
Step 413: 275628 + 669 = 276297
Step 414: 276297 + 669 = 276966
Step 415: 276966 + 669 = 277635
Step 416: 277635 + 669 = 278304
Step 417: 278304 + 669 = 278973
Step 418: 278973 + 669 = 279642
Step 419: 279642 + 669 = 280311
Step 420: 280311 + 669 = 280980
Step 421: 280980 + 669 = 281649
Step 422: 281649 + 669 = 282318
Step 423: 282318 + 669 = 282987
Step 424: 282987 + 669 = 283656
Step 425: 283656 + 669 = 284325
Step 426: 284325 + 669 = 284994
Step 427: 284994 + 669 = 285663
Step 428: 285663 + 669 = 286332
Step 429: 286332 + 669 = 287001
Step 430: 287001 + 669 = 287670

So, 669*430 = 287670