Alright, let's solve this math problem step by step. First, we have the number 407. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 453. So, we're going to take the number 407 and add it to itself 453 times.
Step 1: 0 + 407 = 407
Step 2: 407 + 407 = 814
Step 3: 814 + 407 = 1221
Step 4: 1221 + 407 = 1628
Step 5: 1628 + 407 = 2035
Step 6: 2035 + 407 = 2442
Step 7: 2442 + 407 = 2849
Step 8: 2849 + 407 = 3256
Step 9: 3256 + 407 = 3663
Step 10: 3663 + 407 = 4070
Step 11: 4070 + 407 = 4477
Step 12: 4477 + 407 = 4884
Step 13: 4884 + 407 = 5291
Step 14: 5291 + 407 = 5698
Step 15: 5698 + 407 = 6105
Step 16: 6105 + 407 = 6512
Step 17: 6512 + 407 = 6919
Step 18: 6919 + 407 = 7326
Step 19: 7326 + 407 = 7733
Step 20: 7733 + 407 = 8140
Step 21: 8140 + 407 = 8547
Step 22: 8547 + 407 = 8954
Step 23: 8954 + 407 = 9361
Step 24: 9361 + 407 = 9768
Step 25: 9768 + 407 = 10175
Step 26: 10175 + 407 = 10582
Step 27: 10582 + 407 = 10989
Step 28: 10989 + 407 = 11396
Step 29: 11396 + 407 = 11803
Step 30: 11803 + 407 = 12210
Step 31: 12210 + 407 = 12617
Step 32: 12617 + 407 = 13024
Step 33: 13024 + 407 = 13431
Step 34: 13431 + 407 = 13838
Step 35: 13838 + 407 = 14245
Step 36: 14245 + 407 = 14652
Step 37: 14652 + 407 = 15059
Step 38: 15059 + 407 = 15466
Step 39: 15466 + 407 = 15873
Step 40: 15873 + 407 = 16280
Step 41: 16280 + 407 = 16687
Step 42: 16687 + 407 = 17094
Step 43: 17094 + 407 = 17501
Step 44: 17501 + 407 = 17908
Step 45: 17908 + 407 = 18315
Step 46: 18315 + 407 = 18722
Step 47: 18722 + 407 = 19129
Step 48: 19129 + 407 = 19536
Step 49: 19536 + 407 = 19943
Step 50: 19943 + 407 = 20350
Step 51: 20350 + 407 = 20757
Step 52: 20757 + 407 = 21164
Step 53: 21164 + 407 = 21571
Step 54: 21571 + 407 = 21978
Step 55: 21978 + 407 = 22385
Step 56: 22385 + 407 = 22792
Step 57: 22792 + 407 = 23199
Step 58: 23199 + 407 = 23606
Step 59: 23606 + 407 = 24013
Step 60: 24013 + 407 = 24420
Step 61: 24420 + 407 = 24827
Step 62: 24827 + 407 = 25234
Step 63: 25234 + 407 = 25641
Step 64: 25641 + 407 = 26048
Step 65: 26048 + 407 = 26455
Step 66: 26455 + 407 = 26862
Step 67: 26862 + 407 = 27269
Step 68: 27269 + 407 = 27676
Step 69: 27676 + 407 = 28083
Step 70: 28083 + 407 = 28490
Step 71: 28490 + 407 = 28897
Step 72: 28897 + 407 = 29304
Step 73: 29304 + 407 = 29711
Step 74: 29711 + 407 = 30118
Step 75: 30118 + 407 = 30525
Step 76: 30525 + 407 = 30932
Step 77: 30932 + 407 = 31339
Step 78: 31339 + 407 = 31746
Step 79: 31746 + 407 = 32153
Step 80: 32153 + 407 = 32560
Step 81: 32560 + 407 = 32967
Step 82: 32967 + 407 = 33374
Step 83: 33374 + 407 = 33781
Step 84: 33781 + 407 = 34188
Step 85: 34188 + 407 = 34595
Step 86: 34595 + 407 = 35002
Step 87: 35002 + 407 = 35409
Step 88: 35409 + 407 = 35816
Step 89: 35816 + 407 = 36223
Step 90: 36223 + 407 = 36630
Step 91: 36630 + 407 = 37037
Step 92: 37037 + 407 = 37444
Step 93: 37444 + 407 = 37851
Step 94: 37851 + 407 = 38258
Step 95: 38258 + 407 = 38665
Step 96: 38665 + 407 = 39072
Step 97: 39072 + 407 = 39479
Step 98: 39479 + 407 = 39886
Step 99: 39886 + 407 = 40293
Step 100: 40293 + 407 = 40700
Step 101: 40700 + 407 = 41107
Step 102: 41107 + 407 = 41514
Step 103: 41514 + 407 = 41921
Step 104: 41921 + 407 = 42328
Step 105: 42328 + 407 = 42735
Step 106: 42735 + 407 = 43142
Step 107: 43142 + 407 = 43549
Step 108: 43549 + 407 = 43956
Step 109: 43956 + 407 = 44363
Step 110: 44363 + 407 = 44770
Step 111: 44770 + 407 = 45177
Step 112: 45177 + 407 = 45584
Step 113: 45584 + 407 = 45991
Step 114: 45991 + 407 = 46398
Step 115: 46398 + 407 = 46805
Step 116: 46805 + 407 = 47212
Step 117: 47212 + 407 = 47619
Step 118: 47619 + 407 = 48026
Step 119: 48026 + 407 = 48433
Step 120: 48433 + 407 = 48840
Step 121: 48840 + 407 = 49247
Step 122: 49247 + 407 = 49654
Step 123: 49654 + 407 = 50061
Step 124: 50061 + 407 = 50468
Step 125: 50468 + 407 = 50875
Step 126: 50875 + 407 = 51282
Step 127: 51282 + 407 = 51689
Step 128: 51689 + 407 = 52096
Step 129: 52096 + 407 = 52503
Step 130: 52503 + 407 = 52910
Step 131: 52910 + 407 = 53317
Step 132: 53317 + 407 = 53724
Step 133: 53724 + 407 = 54131
Step 134: 54131 + 407 = 54538
Step 135: 54538 + 407 = 54945
Step 136: 54945 + 407 = 55352
Step 137: 55352 + 407 = 55759
Step 138: 55759 + 407 = 56166
Step 139: 56166 + 407 = 56573
Step 140: 56573 + 407 = 56980
Step 141: 56980 + 407 = 57387
Step 142: 57387 + 407 = 57794
Step 143: 57794 + 407 = 58201
Step 144: 58201 + 407 = 58608
Step 145: 58608 + 407 = 59015
Step 146: 59015 + 407 = 59422
Step 147: 59422 + 407 = 59829
Step 148: 59829 + 407 = 60236
Step 149: 60236 + 407 = 60643
Step 150: 60643 + 407 = 61050
Step 151: 61050 + 407 = 61457
Step 152: 61457 + 407 = 61864
Step 153: 61864 + 407 = 62271
Step 154: 62271 + 407 = 62678
Step 155: 62678 + 407 = 63085
Step 156: 63085 + 407 = 63492
Step 157: 63492 + 407 = 63899
Step 158: 63899 + 407 = 64306
Step 159: 64306 + 407 = 64713
Step 160: 64713 + 407 = 65120
Step 161: 65120 + 407 = 65527
Step 162: 65527 + 407 = 65934
Step 163: 65934 + 407 = 66341
Step 164: 66341 + 407 = 66748
Step 165: 66748 + 407 = 67155
Step 166: 67155 + 407 = 67562
Step 167: 67562 + 407 = 67969
Step 168: 67969 + 407 = 68376
Step 169: 68376 + 407 = 68783
Step 170: 68783 + 407 = 69190
Step 171: 69190 + 407 = 69597
Step 172: 69597 + 407 = 70004
Step 173: 70004 + 407 = 70411
Step 174: 70411 + 407 = 70818
Step 175: 70818 + 407 = 71225
Step 176: 71225 + 407 = 71632
Step 177: 71632 + 407 = 72039
Step 178: 72039 + 407 = 72446
Step 179: 72446 + 407 = 72853
Step 180: 72853 + 407 = 73260
Step 181: 73260 + 407 = 73667
Step 182: 73667 + 407 = 74074
Step 183: 74074 + 407 = 74481
Step 184: 74481 + 407 = 74888
Step 185: 74888 + 407 = 75295
Step 186: 75295 + 407 = 75702
Step 187: 75702 + 407 = 76109
Step 188: 76109 + 407 = 76516
Step 189: 76516 + 407 = 76923
Step 190: 76923 + 407 = 77330
Step 191: 77330 + 407 = 77737
Step 192: 77737 + 407 = 78144
Step 193: 78144 + 407 = 78551
Step 194: 78551 + 407 = 78958
Step 195: 78958 + 407 = 79365
Step 196: 79365 + 407 = 79772
Step 197: 79772 + 407 = 80179
Step 198: 80179 + 407 = 80586
Step 199: 80586 + 407 = 80993
Step 200: 80993 + 407 = 81400
Step 201: 81400 + 407 = 81807
Step 202: 81807 + 407 = 82214
Step 203: 82214 + 407 = 82621
Step 204: 82621 + 407 = 83028
Step 205: 83028 + 407 = 83435
Step 206: 83435 + 407 = 83842
Step 207: 83842 + 407 = 84249
Step 208: 84249 + 407 = 84656
Step 209: 84656 + 407 = 85063
Step 210: 85063 + 407 = 85470
Step 211: 85470 + 407 = 85877
Step 212: 85877 + 407 = 86284
Step 213: 86284 + 407 = 86691
Step 214: 86691 + 407 = 87098
Step 215: 87098 + 407 = 87505
Step 216: 87505 + 407 = 87912
Step 217: 87912 + 407 = 88319
Step 218: 88319 + 407 = 88726
Step 219: 88726 + 407 = 89133
Step 220: 89133 + 407 = 89540
Step 221: 89540 + 407 = 89947
Step 222: 89947 + 407 = 90354
Step 223: 90354 + 407 = 90761
Step 224: 90761 + 407 = 91168
Step 225: 91168 + 407 = 91575
Step 226: 91575 + 407 = 91982
Step 227: 91982 + 407 = 92389
Step 228: 92389 + 407 = 92796
Step 229: 92796 + 407 = 93203
Step 230: 93203 + 407 = 93610
Step 231: 93610 + 407 = 94017
Step 232: 94017 + 407 = 94424
Step 233: 94424 + 407 = 94831
Step 234: 94831 + 407 = 95238
Step 235: 95238 + 407 = 95645
Step 236: 95645 + 407 = 96052
Step 237: 96052 + 407 = 96459
Step 238: 96459 + 407 = 96866
Step 239: 96866 + 407 = 97273
Step 240: 97273 + 407 = 97680
Step 241: 97680 + 407 = 98087
Step 242: 98087 + 407 = 98494
Step 243: 98494 + 407 = 98901
Step 244: 98901 + 407 = 99308
Step 245: 99308 + 407 = 99715
Step 246: 99715 + 407 = 100122
Step 247: 100122 + 407 = 100529
Step 248: 100529 + 407 = 100936
Step 249: 100936 + 407 = 101343
Step 250: 101343 + 407 = 101750
Step 251: 101750 + 407 = 102157
Step 252: 102157 + 407 = 102564
Step 253: 102564 + 407 = 102971
Step 254: 102971 + 407 = 103378
Step 255: 103378 + 407 = 103785
Step 256: 103785 + 407 = 104192
Step 257: 104192 + 407 = 104599
Step 258: 104599 + 407 = 105006
Step 259: 105006 + 407 = 105413
Step 260: 105413 + 407 = 105820
Step 261: 105820 + 407 = 106227
Step 262: 106227 + 407 = 106634
Step 263: 106634 + 407 = 107041
Step 264: 107041 + 407 = 107448
Step 265: 107448 + 407 = 107855
Step 266: 107855 + 407 = 108262
Step 267: 108262 + 407 = 108669
Step 268: 108669 + 407 = 109076
Step 269: 109076 + 407 = 109483
Step 270: 109483 + 407 = 109890
Step 271: 109890 + 407 = 110297
Step 272: 110297 + 407 = 110704
Step 273: 110704 + 407 = 111111
Step 274: 111111 + 407 = 111518
Step 275: 111518 + 407 = 111925
Step 276: 111925 + 407 = 112332
Step 277: 112332 + 407 = 112739
Step 278: 112739 + 407 = 113146
Step 279: 113146 + 407 = 113553
Step 280: 113553 + 407 = 113960
Step 281: 113960 + 407 = 114367
Step 282: 114367 + 407 = 114774
Step 283: 114774 + 407 = 115181
Step 284: 115181 + 407 = 115588
Step 285: 115588 + 407 = 115995
Step 286: 115995 + 407 = 116402
Step 287: 116402 + 407 = 116809
Step 288: 116809 + 407 = 117216
Step 289: 117216 + 407 = 117623
Step 290: 117623 + 407 = 118030
Step 291: 118030 + 407 = 118437
Step 292: 118437 + 407 = 118844
Step 293: 118844 + 407 = 119251
Step 294: 119251 + 407 = 119658
Step 295: 119658 + 407 = 120065
Step 296: 120065 + 407 = 120472
Step 297: 120472 + 407 = 120879
Step 298: 120879 + 407 = 121286
Step 299: 121286 + 407 = 121693
Step 300: 121693 + 407 = 122100
Step 301: 122100 + 407 = 122507
Step 302: 122507 + 407 = 122914
Step 303: 122914 + 407 = 123321
Step 304: 123321 + 407 = 123728
Step 305: 123728 + 407 = 124135
Step 306: 124135 + 407 = 124542
Step 307: 124542 + 407 = 124949
Step 308: 124949 + 407 = 125356
Step 309: 125356 + 407 = 125763
Step 310: 125763 + 407 = 126170
Step 311: 126170 + 407 = 126577
Step 312: 126577 + 407 = 126984
Step 313: 126984 + 407 = 127391
Step 314: 127391 + 407 = 127798
Step 315: 127798 + 407 = 128205
Step 316: 128205 + 407 = 128612
Step 317: 128612 + 407 = 129019
Step 318: 129019 + 407 = 129426
Step 319: 129426 + 407 = 129833
Step 320: 129833 + 407 = 130240
Step 321: 130240 + 407 = 130647
Step 322: 130647 + 407 = 131054
Step 323: 131054 + 407 = 131461
Step 324: 131461 + 407 = 131868
Step 325: 131868 + 407 = 132275
Step 326: 132275 + 407 = 132682
Step 327: 132682 + 407 = 133089
Step 328: 133089 + 407 = 133496
Step 329: 133496 + 407 = 133903
Step 330: 133903 + 407 = 134310
Step 331: 134310 + 407 = 134717
Step 332: 134717 + 407 = 135124
Step 333: 135124 + 407 = 135531
Step 334: 135531 + 407 = 135938
Step 335: 135938 + 407 = 136345
Step 336: 136345 + 407 = 136752
Step 337: 136752 + 407 = 137159
Step 338: 137159 + 407 = 137566
Step 339: 137566 + 407 = 137973
Step 340: 137973 + 407 = 138380
Step 341: 138380 + 407 = 138787
Step 342: 138787 + 407 = 139194
Step 343: 139194 + 407 = 139601
Step 344: 139601 + 407 = 140008
Step 345: 140008 + 407 = 140415
Step 346: 140415 + 407 = 140822
Step 347: 140822 + 407 = 141229
Step 348: 141229 + 407 = 141636
Step 349: 141636 + 407 = 142043
Step 350: 142043 + 407 = 142450
Step 351: 142450 + 407 = 142857
Step 352: 142857 + 407 = 143264
Step 353: 143264 + 407 = 143671
Step 354: 143671 + 407 = 144078
Step 355: 144078 + 407 = 144485
Step 356: 144485 + 407 = 144892
Step 357: 144892 + 407 = 145299
Step 358: 145299 + 407 = 145706
Step 359: 145706 + 407 = 146113
Step 360: 146113 + 407 = 146520
Step 361: 146520 + 407 = 146927
Step 362: 146927 + 407 = 147334
Step 363: 147334 + 407 = 147741
Step 364: 147741 + 407 = 148148
Step 365: 148148 + 407 = 148555
Step 366: 148555 + 407 = 148962
Step 367: 148962 + 407 = 149369
Step 368: 149369 + 407 = 149776
Step 369: 149776 + 407 = 150183
Step 370: 150183 + 407 = 150590
Step 371: 150590 + 407 = 150997
Step 372: 150997 + 407 = 151404
Step 373: 151404 + 407 = 151811
Step 374: 151811 + 407 = 152218
Step 375: 152218 + 407 = 152625
Step 376: 152625 + 407 = 153032
Step 377: 153032 + 407 = 153439
Step 378: 153439 + 407 = 153846
Step 379: 153846 + 407 = 154253
Step 380: 154253 + 407 = 154660
Step 381: 154660 + 407 = 155067
Step 382: 155067 + 407 = 155474
Step 383: 155474 + 407 = 155881
Step 384: 155881 + 407 = 156288
Step 385: 156288 + 407 = 156695
Step 386: 156695 + 407 = 157102
Step 387: 157102 + 407 = 157509
Step 388: 157509 + 407 = 157916
Step 389: 157916 + 407 = 158323
Step 390: 158323 + 407 = 158730
Step 391: 158730 + 407 = 159137
Step 392: 159137 + 407 = 159544
Step 393: 159544 + 407 = 159951
Step 394: 159951 + 407 = 160358
Step 395: 160358 + 407 = 160765
Step 396: 160765 + 407 = 161172
Step 397: 161172 + 407 = 161579
Step 398: 161579 + 407 = 161986
Step 399: 161986 + 407 = 162393
Step 400: 162393 + 407 = 162800
Step 401: 162800 + 407 = 163207
Step 402: 163207 + 407 = 163614
Step 403: 163614 + 407 = 164021
Step 404: 164021 + 407 = 164428
Step 405: 164428 + 407 = 164835
Step 406: 164835 + 407 = 165242
Step 407: 165242 + 407 = 165649
Step 408: 165649 + 407 = 166056
Step 409: 166056 + 407 = 166463
Step 410: 166463 + 407 = 166870
Step 411: 166870 + 407 = 167277
Step 412: 167277 + 407 = 167684
Step 413: 167684 + 407 = 168091
Step 414: 168091 + 407 = 168498
Step 415: 168498 + 407 = 168905
Step 416: 168905 + 407 = 169312
Step 417: 169312 + 407 = 169719
Step 418: 169719 + 407 = 170126
Step 419: 170126 + 407 = 170533
Step 420: 170533 + 407 = 170940
Step 421: 170940 + 407 = 171347
Step 422: 171347 + 407 = 171754
Step 423: 171754 + 407 = 172161
Step 424: 172161 + 407 = 172568
Step 425: 172568 + 407 = 172975
Step 426: 172975 + 407 = 173382
Step 427: 173382 + 407 = 173789
Step 428: 173789 + 407 = 174196
Step 429: 174196 + 407 = 174603
Step 430: 174603 + 407 = 175010
Step 431: 175010 + 407 = 175417
Step 432: 175417 + 407 = 175824
Step 433: 175824 + 407 = 176231
Step 434: 176231 + 407 = 176638
Step 435: 176638 + 407 = 177045
Step 436: 177045 + 407 = 177452
Step 437: 177452 + 407 = 177859
Step 438: 177859 + 407 = 178266
Step 439: 178266 + 407 = 178673
Step 440: 178673 + 407 = 179080
Step 441: 179080 + 407 = 179487
Step 442: 179487 + 407 = 179894
Step 443: 179894 + 407 = 180301
Step 444: 180301 + 407 = 180708
Step 445: 180708 + 407 = 181115
Step 446: 181115 + 407 = 181522
Step 447: 181522 + 407 = 181929
Step 448: 181929 + 407 = 182336
Step 449: 182336 + 407 = 182743
Step 450: 182743 + 407 = 183150
Step 451: 183150 + 407 = 183557
Step 452: 183557 + 407 = 183964
Step 453: 183964 + 407 = 184371

So, 407*453 = 184371