Alright, let's solve this math problem step by step. First, we have the number 667. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 405. So, we're going to take the number 667 and add it to itself 405 times.
Step 1: 0 + 667 = 667
Step 2: 667 + 667 = 1334
Step 3: 1334 + 667 = 2001
Step 4: 2001 + 667 = 2668
Step 5: 2668 + 667 = 3335
Step 6: 3335 + 667 = 4002
Step 7: 4002 + 667 = 4669
Step 8: 4669 + 667 = 5336
Step 9: 5336 + 667 = 6003
Step 10: 6003 + 667 = 6670
Step 11: 6670 + 667 = 7337
Step 12: 7337 + 667 = 8004
Step 13: 8004 + 667 = 8671
Step 14: 8671 + 667 = 9338
Step 15: 9338 + 667 = 10005
Step 16: 10005 + 667 = 10672
Step 17: 10672 + 667 = 11339
Step 18: 11339 + 667 = 12006
Step 19: 12006 + 667 = 12673
Step 20: 12673 + 667 = 13340
Step 21: 13340 + 667 = 14007
Step 22: 14007 + 667 = 14674
Step 23: 14674 + 667 = 15341
Step 24: 15341 + 667 = 16008
Step 25: 16008 + 667 = 16675
Step 26: 16675 + 667 = 17342
Step 27: 17342 + 667 = 18009
Step 28: 18009 + 667 = 18676
Step 29: 18676 + 667 = 19343
Step 30: 19343 + 667 = 20010
Step 31: 20010 + 667 = 20677
Step 32: 20677 + 667 = 21344
Step 33: 21344 + 667 = 22011
Step 34: 22011 + 667 = 22678
Step 35: 22678 + 667 = 23345
Step 36: 23345 + 667 = 24012
Step 37: 24012 + 667 = 24679
Step 38: 24679 + 667 = 25346
Step 39: 25346 + 667 = 26013
Step 40: 26013 + 667 = 26680
Step 41: 26680 + 667 = 27347
Step 42: 27347 + 667 = 28014
Step 43: 28014 + 667 = 28681
Step 44: 28681 + 667 = 29348
Step 45: 29348 + 667 = 30015
Step 46: 30015 + 667 = 30682
Step 47: 30682 + 667 = 31349
Step 48: 31349 + 667 = 32016
Step 49: 32016 + 667 = 32683
Step 50: 32683 + 667 = 33350
Step 51: 33350 + 667 = 34017
Step 52: 34017 + 667 = 34684
Step 53: 34684 + 667 = 35351
Step 54: 35351 + 667 = 36018
Step 55: 36018 + 667 = 36685
Step 56: 36685 + 667 = 37352
Step 57: 37352 + 667 = 38019
Step 58: 38019 + 667 = 38686
Step 59: 38686 + 667 = 39353
Step 60: 39353 + 667 = 40020
Step 61: 40020 + 667 = 40687
Step 62: 40687 + 667 = 41354
Step 63: 41354 + 667 = 42021
Step 64: 42021 + 667 = 42688
Step 65: 42688 + 667 = 43355
Step 66: 43355 + 667 = 44022
Step 67: 44022 + 667 = 44689
Step 68: 44689 + 667 = 45356
Step 69: 45356 + 667 = 46023
Step 70: 46023 + 667 = 46690
Step 71: 46690 + 667 = 47357
Step 72: 47357 + 667 = 48024
Step 73: 48024 + 667 = 48691
Step 74: 48691 + 667 = 49358
Step 75: 49358 + 667 = 50025
Step 76: 50025 + 667 = 50692
Step 77: 50692 + 667 = 51359
Step 78: 51359 + 667 = 52026
Step 79: 52026 + 667 = 52693
Step 80: 52693 + 667 = 53360
Step 81: 53360 + 667 = 54027
Step 82: 54027 + 667 = 54694
Step 83: 54694 + 667 = 55361
Step 84: 55361 + 667 = 56028
Step 85: 56028 + 667 = 56695
Step 86: 56695 + 667 = 57362
Step 87: 57362 + 667 = 58029
Step 88: 58029 + 667 = 58696
Step 89: 58696 + 667 = 59363
Step 90: 59363 + 667 = 60030
Step 91: 60030 + 667 = 60697
Step 92: 60697 + 667 = 61364
Step 93: 61364 + 667 = 62031
Step 94: 62031 + 667 = 62698
Step 95: 62698 + 667 = 63365
Step 96: 63365 + 667 = 64032
Step 97: 64032 + 667 = 64699
Step 98: 64699 + 667 = 65366
Step 99: 65366 + 667 = 66033
Step 100: 66033 + 667 = 66700
Step 101: 66700 + 667 = 67367
Step 102: 67367 + 667 = 68034
Step 103: 68034 + 667 = 68701
Step 104: 68701 + 667 = 69368
Step 105: 69368 + 667 = 70035
Step 106: 70035 + 667 = 70702
Step 107: 70702 + 667 = 71369
Step 108: 71369 + 667 = 72036
Step 109: 72036 + 667 = 72703
Step 110: 72703 + 667 = 73370
Step 111: 73370 + 667 = 74037
Step 112: 74037 + 667 = 74704
Step 113: 74704 + 667 = 75371
Step 114: 75371 + 667 = 76038
Step 115: 76038 + 667 = 76705
Step 116: 76705 + 667 = 77372
Step 117: 77372 + 667 = 78039
Step 118: 78039 + 667 = 78706
Step 119: 78706 + 667 = 79373
Step 120: 79373 + 667 = 80040
Step 121: 80040 + 667 = 80707
Step 122: 80707 + 667 = 81374
Step 123: 81374 + 667 = 82041
Step 124: 82041 + 667 = 82708
Step 125: 82708 + 667 = 83375
Step 126: 83375 + 667 = 84042
Step 127: 84042 + 667 = 84709
Step 128: 84709 + 667 = 85376
Step 129: 85376 + 667 = 86043
Step 130: 86043 + 667 = 86710
Step 131: 86710 + 667 = 87377
Step 132: 87377 + 667 = 88044
Step 133: 88044 + 667 = 88711
Step 134: 88711 + 667 = 89378
Step 135: 89378 + 667 = 90045
Step 136: 90045 + 667 = 90712
Step 137: 90712 + 667 = 91379
Step 138: 91379 + 667 = 92046
Step 139: 92046 + 667 = 92713
Step 140: 92713 + 667 = 93380
Step 141: 93380 + 667 = 94047
Step 142: 94047 + 667 = 94714
Step 143: 94714 + 667 = 95381
Step 144: 95381 + 667 = 96048
Step 145: 96048 + 667 = 96715
Step 146: 96715 + 667 = 97382
Step 147: 97382 + 667 = 98049
Step 148: 98049 + 667 = 98716
Step 149: 98716 + 667 = 99383
Step 150: 99383 + 667 = 100050
Step 151: 100050 + 667 = 100717
Step 152: 100717 + 667 = 101384
Step 153: 101384 + 667 = 102051
Step 154: 102051 + 667 = 102718
Step 155: 102718 + 667 = 103385
Step 156: 103385 + 667 = 104052
Step 157: 104052 + 667 = 104719
Step 158: 104719 + 667 = 105386
Step 159: 105386 + 667 = 106053
Step 160: 106053 + 667 = 106720
Step 161: 106720 + 667 = 107387
Step 162: 107387 + 667 = 108054
Step 163: 108054 + 667 = 108721
Step 164: 108721 + 667 = 109388
Step 165: 109388 + 667 = 110055
Step 166: 110055 + 667 = 110722
Step 167: 110722 + 667 = 111389
Step 168: 111389 + 667 = 112056
Step 169: 112056 + 667 = 112723
Step 170: 112723 + 667 = 113390
Step 171: 113390 + 667 = 114057
Step 172: 114057 + 667 = 114724
Step 173: 114724 + 667 = 115391
Step 174: 115391 + 667 = 116058
Step 175: 116058 + 667 = 116725
Step 176: 116725 + 667 = 117392
Step 177: 117392 + 667 = 118059
Step 178: 118059 + 667 = 118726
Step 179: 118726 + 667 = 119393
Step 180: 119393 + 667 = 120060
Step 181: 120060 + 667 = 120727
Step 182: 120727 + 667 = 121394
Step 183: 121394 + 667 = 122061
Step 184: 122061 + 667 = 122728
Step 185: 122728 + 667 = 123395
Step 186: 123395 + 667 = 124062
Step 187: 124062 + 667 = 124729
Step 188: 124729 + 667 = 125396
Step 189: 125396 + 667 = 126063
Step 190: 126063 + 667 = 126730
Step 191: 126730 + 667 = 127397
Step 192: 127397 + 667 = 128064
Step 193: 128064 + 667 = 128731
Step 194: 128731 + 667 = 129398
Step 195: 129398 + 667 = 130065
Step 196: 130065 + 667 = 130732
Step 197: 130732 + 667 = 131399
Step 198: 131399 + 667 = 132066
Step 199: 132066 + 667 = 132733
Step 200: 132733 + 667 = 133400
Step 201: 133400 + 667 = 134067
Step 202: 134067 + 667 = 134734
Step 203: 134734 + 667 = 135401
Step 204: 135401 + 667 = 136068
Step 205: 136068 + 667 = 136735
Step 206: 136735 + 667 = 137402
Step 207: 137402 + 667 = 138069
Step 208: 138069 + 667 = 138736
Step 209: 138736 + 667 = 139403
Step 210: 139403 + 667 = 140070
Step 211: 140070 + 667 = 140737
Step 212: 140737 + 667 = 141404
Step 213: 141404 + 667 = 142071
Step 214: 142071 + 667 = 142738
Step 215: 142738 + 667 = 143405
Step 216: 143405 + 667 = 144072
Step 217: 144072 + 667 = 144739
Step 218: 144739 + 667 = 145406
Step 219: 145406 + 667 = 146073
Step 220: 146073 + 667 = 146740
Step 221: 146740 + 667 = 147407
Step 222: 147407 + 667 = 148074
Step 223: 148074 + 667 = 148741
Step 224: 148741 + 667 = 149408
Step 225: 149408 + 667 = 150075
Step 226: 150075 + 667 = 150742
Step 227: 150742 + 667 = 151409
Step 228: 151409 + 667 = 152076
Step 229: 152076 + 667 = 152743
Step 230: 152743 + 667 = 153410
Step 231: 153410 + 667 = 154077
Step 232: 154077 + 667 = 154744
Step 233: 154744 + 667 = 155411
Step 234: 155411 + 667 = 156078
Step 235: 156078 + 667 = 156745
Step 236: 156745 + 667 = 157412
Step 237: 157412 + 667 = 158079
Step 238: 158079 + 667 = 158746
Step 239: 158746 + 667 = 159413
Step 240: 159413 + 667 = 160080
Step 241: 160080 + 667 = 160747
Step 242: 160747 + 667 = 161414
Step 243: 161414 + 667 = 162081
Step 244: 162081 + 667 = 162748
Step 245: 162748 + 667 = 163415
Step 246: 163415 + 667 = 164082
Step 247: 164082 + 667 = 164749
Step 248: 164749 + 667 = 165416
Step 249: 165416 + 667 = 166083
Step 250: 166083 + 667 = 166750
Step 251: 166750 + 667 = 167417
Step 252: 167417 + 667 = 168084
Step 253: 168084 + 667 = 168751
Step 254: 168751 + 667 = 169418
Step 255: 169418 + 667 = 170085
Step 256: 170085 + 667 = 170752
Step 257: 170752 + 667 = 171419
Step 258: 171419 + 667 = 172086
Step 259: 172086 + 667 = 172753
Step 260: 172753 + 667 = 173420
Step 261: 173420 + 667 = 174087
Step 262: 174087 + 667 = 174754
Step 263: 174754 + 667 = 175421
Step 264: 175421 + 667 = 176088
Step 265: 176088 + 667 = 176755
Step 266: 176755 + 667 = 177422
Step 267: 177422 + 667 = 178089
Step 268: 178089 + 667 = 178756
Step 269: 178756 + 667 = 179423
Step 270: 179423 + 667 = 180090
Step 271: 180090 + 667 = 180757
Step 272: 180757 + 667 = 181424
Step 273: 181424 + 667 = 182091
Step 274: 182091 + 667 = 182758
Step 275: 182758 + 667 = 183425
Step 276: 183425 + 667 = 184092
Step 277: 184092 + 667 = 184759
Step 278: 184759 + 667 = 185426
Step 279: 185426 + 667 = 186093
Step 280: 186093 + 667 = 186760
Step 281: 186760 + 667 = 187427
Step 282: 187427 + 667 = 188094
Step 283: 188094 + 667 = 188761
Step 284: 188761 + 667 = 189428
Step 285: 189428 + 667 = 190095
Step 286: 190095 + 667 = 190762
Step 287: 190762 + 667 = 191429
Step 288: 191429 + 667 = 192096
Step 289: 192096 + 667 = 192763
Step 290: 192763 + 667 = 193430
Step 291: 193430 + 667 = 194097
Step 292: 194097 + 667 = 194764
Step 293: 194764 + 667 = 195431
Step 294: 195431 + 667 = 196098
Step 295: 196098 + 667 = 196765
Step 296: 196765 + 667 = 197432
Step 297: 197432 + 667 = 198099
Step 298: 198099 + 667 = 198766
Step 299: 198766 + 667 = 199433
Step 300: 199433 + 667 = 200100
Step 301: 200100 + 667 = 200767
Step 302: 200767 + 667 = 201434
Step 303: 201434 + 667 = 202101
Step 304: 202101 + 667 = 202768
Step 305: 202768 + 667 = 203435
Step 306: 203435 + 667 = 204102
Step 307: 204102 + 667 = 204769
Step 308: 204769 + 667 = 205436
Step 309: 205436 + 667 = 206103
Step 310: 206103 + 667 = 206770
Step 311: 206770 + 667 = 207437
Step 312: 207437 + 667 = 208104
Step 313: 208104 + 667 = 208771
Step 314: 208771 + 667 = 209438
Step 315: 209438 + 667 = 210105
Step 316: 210105 + 667 = 210772
Step 317: 210772 + 667 = 211439
Step 318: 211439 + 667 = 212106
Step 319: 212106 + 667 = 212773
Step 320: 212773 + 667 = 213440
Step 321: 213440 + 667 = 214107
Step 322: 214107 + 667 = 214774
Step 323: 214774 + 667 = 215441
Step 324: 215441 + 667 = 216108
Step 325: 216108 + 667 = 216775
Step 326: 216775 + 667 = 217442
Step 327: 217442 + 667 = 218109
Step 328: 218109 + 667 = 218776
Step 329: 218776 + 667 = 219443
Step 330: 219443 + 667 = 220110
Step 331: 220110 + 667 = 220777
Step 332: 220777 + 667 = 221444
Step 333: 221444 + 667 = 222111
Step 334: 222111 + 667 = 222778
Step 335: 222778 + 667 = 223445
Step 336: 223445 + 667 = 224112
Step 337: 224112 + 667 = 224779
Step 338: 224779 + 667 = 225446
Step 339: 225446 + 667 = 226113
Step 340: 226113 + 667 = 226780
Step 341: 226780 + 667 = 227447
Step 342: 227447 + 667 = 228114
Step 343: 228114 + 667 = 228781
Step 344: 228781 + 667 = 229448
Step 345: 229448 + 667 = 230115
Step 346: 230115 + 667 = 230782
Step 347: 230782 + 667 = 231449
Step 348: 231449 + 667 = 232116
Step 349: 232116 + 667 = 232783
Step 350: 232783 + 667 = 233450
Step 351: 233450 + 667 = 234117
Step 352: 234117 + 667 = 234784
Step 353: 234784 + 667 = 235451
Step 354: 235451 + 667 = 236118
Step 355: 236118 + 667 = 236785
Step 356: 236785 + 667 = 237452
Step 357: 237452 + 667 = 238119
Step 358: 238119 + 667 = 238786
Step 359: 238786 + 667 = 239453
Step 360: 239453 + 667 = 240120
Step 361: 240120 + 667 = 240787
Step 362: 240787 + 667 = 241454
Step 363: 241454 + 667 = 242121
Step 364: 242121 + 667 = 242788
Step 365: 242788 + 667 = 243455
Step 366: 243455 + 667 = 244122
Step 367: 244122 + 667 = 244789
Step 368: 244789 + 667 = 245456
Step 369: 245456 + 667 = 246123
Step 370: 246123 + 667 = 246790
Step 371: 246790 + 667 = 247457
Step 372: 247457 + 667 = 248124
Step 373: 248124 + 667 = 248791
Step 374: 248791 + 667 = 249458
Step 375: 249458 + 667 = 250125
Step 376: 250125 + 667 = 250792
Step 377: 250792 + 667 = 251459
Step 378: 251459 + 667 = 252126
Step 379: 252126 + 667 = 252793
Step 380: 252793 + 667 = 253460
Step 381: 253460 + 667 = 254127
Step 382: 254127 + 667 = 254794
Step 383: 254794 + 667 = 255461
Step 384: 255461 + 667 = 256128
Step 385: 256128 + 667 = 256795
Step 386: 256795 + 667 = 257462
Step 387: 257462 + 667 = 258129
Step 388: 258129 + 667 = 258796
Step 389: 258796 + 667 = 259463
Step 390: 259463 + 667 = 260130
Step 391: 260130 + 667 = 260797
Step 392: 260797 + 667 = 261464
Step 393: 261464 + 667 = 262131
Step 394: 262131 + 667 = 262798
Step 395: 262798 + 667 = 263465
Step 396: 263465 + 667 = 264132
Step 397: 264132 + 667 = 264799
Step 398: 264799 + 667 = 265466
Step 399: 265466 + 667 = 266133
Step 400: 266133 + 667 = 266800
Step 401: 266800 + 667 = 267467
Step 402: 267467 + 667 = 268134
Step 403: 268134 + 667 = 268801
Step 404: 268801 + 667 = 269468
Step 405: 269468 + 667 = 270135

So, 667*405 = 270135