Alright, let's solve this math problem step by step. First, we have the number 454. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 285. So, we're going to take the number 454 and add it to itself 285 times.
Step 1: 0 + 454 = 454
Step 2: 454 + 454 = 908
Step 3: 908 + 454 = 1362
Step 4: 1362 + 454 = 1816
Step 5: 1816 + 454 = 2270
Step 6: 2270 + 454 = 2724
Step 7: 2724 + 454 = 3178
Step 8: 3178 + 454 = 3632
Step 9: 3632 + 454 = 4086
Step 10: 4086 + 454 = 4540
Step 11: 4540 + 454 = 4994
Step 12: 4994 + 454 = 5448
Step 13: 5448 + 454 = 5902
Step 14: 5902 + 454 = 6356
Step 15: 6356 + 454 = 6810
Step 16: 6810 + 454 = 7264
Step 17: 7264 + 454 = 7718
Step 18: 7718 + 454 = 8172
Step 19: 8172 + 454 = 8626
Step 20: 8626 + 454 = 9080
Step 21: 9080 + 454 = 9534
Step 22: 9534 + 454 = 9988
Step 23: 9988 + 454 = 10442
Step 24: 10442 + 454 = 10896
Step 25: 10896 + 454 = 11350
Step 26: 11350 + 454 = 11804
Step 27: 11804 + 454 = 12258
Step 28: 12258 + 454 = 12712
Step 29: 12712 + 454 = 13166
Step 30: 13166 + 454 = 13620
Step 31: 13620 + 454 = 14074
Step 32: 14074 + 454 = 14528
Step 33: 14528 + 454 = 14982
Step 34: 14982 + 454 = 15436
Step 35: 15436 + 454 = 15890
Step 36: 15890 + 454 = 16344
Step 37: 16344 + 454 = 16798
Step 38: 16798 + 454 = 17252
Step 39: 17252 + 454 = 17706
Step 40: 17706 + 454 = 18160
Step 41: 18160 + 454 = 18614
Step 42: 18614 + 454 = 19068
Step 43: 19068 + 454 = 19522
Step 44: 19522 + 454 = 19976
Step 45: 19976 + 454 = 20430
Step 46: 20430 + 454 = 20884
Step 47: 20884 + 454 = 21338
Step 48: 21338 + 454 = 21792
Step 49: 21792 + 454 = 22246
Step 50: 22246 + 454 = 22700
Step 51: 22700 + 454 = 23154
Step 52: 23154 + 454 = 23608
Step 53: 23608 + 454 = 24062
Step 54: 24062 + 454 = 24516
Step 55: 24516 + 454 = 24970
Step 56: 24970 + 454 = 25424
Step 57: 25424 + 454 = 25878
Step 58: 25878 + 454 = 26332
Step 59: 26332 + 454 = 26786
Step 60: 26786 + 454 = 27240
Step 61: 27240 + 454 = 27694
Step 62: 27694 + 454 = 28148
Step 63: 28148 + 454 = 28602
Step 64: 28602 + 454 = 29056
Step 65: 29056 + 454 = 29510
Step 66: 29510 + 454 = 29964
Step 67: 29964 + 454 = 30418
Step 68: 30418 + 454 = 30872
Step 69: 30872 + 454 = 31326
Step 70: 31326 + 454 = 31780
Step 71: 31780 + 454 = 32234
Step 72: 32234 + 454 = 32688
Step 73: 32688 + 454 = 33142
Step 74: 33142 + 454 = 33596
Step 75: 33596 + 454 = 34050
Step 76: 34050 + 454 = 34504
Step 77: 34504 + 454 = 34958
Step 78: 34958 + 454 = 35412
Step 79: 35412 + 454 = 35866
Step 80: 35866 + 454 = 36320
Step 81: 36320 + 454 = 36774
Step 82: 36774 + 454 = 37228
Step 83: 37228 + 454 = 37682
Step 84: 37682 + 454 = 38136
Step 85: 38136 + 454 = 38590
Step 86: 38590 + 454 = 39044
Step 87: 39044 + 454 = 39498
Step 88: 39498 + 454 = 39952
Step 89: 39952 + 454 = 40406
Step 90: 40406 + 454 = 40860
Step 91: 40860 + 454 = 41314
Step 92: 41314 + 454 = 41768
Step 93: 41768 + 454 = 42222
Step 94: 42222 + 454 = 42676
Step 95: 42676 + 454 = 43130
Step 96: 43130 + 454 = 43584
Step 97: 43584 + 454 = 44038
Step 98: 44038 + 454 = 44492
Step 99: 44492 + 454 = 44946
Step 100: 44946 + 454 = 45400
Step 101: 45400 + 454 = 45854
Step 102: 45854 + 454 = 46308
Step 103: 46308 + 454 = 46762
Step 104: 46762 + 454 = 47216
Step 105: 47216 + 454 = 47670
Step 106: 47670 + 454 = 48124
Step 107: 48124 + 454 = 48578
Step 108: 48578 + 454 = 49032
Step 109: 49032 + 454 = 49486
Step 110: 49486 + 454 = 49940
Step 111: 49940 + 454 = 50394
Step 112: 50394 + 454 = 50848
Step 113: 50848 + 454 = 51302
Step 114: 51302 + 454 = 51756
Step 115: 51756 + 454 = 52210
Step 116: 52210 + 454 = 52664
Step 117: 52664 + 454 = 53118
Step 118: 53118 + 454 = 53572
Step 119: 53572 + 454 = 54026
Step 120: 54026 + 454 = 54480
Step 121: 54480 + 454 = 54934
Step 122: 54934 + 454 = 55388
Step 123: 55388 + 454 = 55842
Step 124: 55842 + 454 = 56296
Step 125: 56296 + 454 = 56750
Step 126: 56750 + 454 = 57204
Step 127: 57204 + 454 = 57658
Step 128: 57658 + 454 = 58112
Step 129: 58112 + 454 = 58566
Step 130: 58566 + 454 = 59020
Step 131: 59020 + 454 = 59474
Step 132: 59474 + 454 = 59928
Step 133: 59928 + 454 = 60382
Step 134: 60382 + 454 = 60836
Step 135: 60836 + 454 = 61290
Step 136: 61290 + 454 = 61744
Step 137: 61744 + 454 = 62198
Step 138: 62198 + 454 = 62652
Step 139: 62652 + 454 = 63106
Step 140: 63106 + 454 = 63560
Step 141: 63560 + 454 = 64014
Step 142: 64014 + 454 = 64468
Step 143: 64468 + 454 = 64922
Step 144: 64922 + 454 = 65376
Step 145: 65376 + 454 = 65830
Step 146: 65830 + 454 = 66284
Step 147: 66284 + 454 = 66738
Step 148: 66738 + 454 = 67192
Step 149: 67192 + 454 = 67646
Step 150: 67646 + 454 = 68100
Step 151: 68100 + 454 = 68554
Step 152: 68554 + 454 = 69008
Step 153: 69008 + 454 = 69462
Step 154: 69462 + 454 = 69916
Step 155: 69916 + 454 = 70370
Step 156: 70370 + 454 = 70824
Step 157: 70824 + 454 = 71278
Step 158: 71278 + 454 = 71732
Step 159: 71732 + 454 = 72186
Step 160: 72186 + 454 = 72640
Step 161: 72640 + 454 = 73094
Step 162: 73094 + 454 = 73548
Step 163: 73548 + 454 = 74002
Step 164: 74002 + 454 = 74456
Step 165: 74456 + 454 = 74910
Step 166: 74910 + 454 = 75364
Step 167: 75364 + 454 = 75818
Step 168: 75818 + 454 = 76272
Step 169: 76272 + 454 = 76726
Step 170: 76726 + 454 = 77180
Step 171: 77180 + 454 = 77634
Step 172: 77634 + 454 = 78088
Step 173: 78088 + 454 = 78542
Step 174: 78542 + 454 = 78996
Step 175: 78996 + 454 = 79450
Step 176: 79450 + 454 = 79904
Step 177: 79904 + 454 = 80358
Step 178: 80358 + 454 = 80812
Step 179: 80812 + 454 = 81266
Step 180: 81266 + 454 = 81720
Step 181: 81720 + 454 = 82174
Step 182: 82174 + 454 = 82628
Step 183: 82628 + 454 = 83082
Step 184: 83082 + 454 = 83536
Step 185: 83536 + 454 = 83990
Step 186: 83990 + 454 = 84444
Step 187: 84444 + 454 = 84898
Step 188: 84898 + 454 = 85352
Step 189: 85352 + 454 = 85806
Step 190: 85806 + 454 = 86260
Step 191: 86260 + 454 = 86714
Step 192: 86714 + 454 = 87168
Step 193: 87168 + 454 = 87622
Step 194: 87622 + 454 = 88076
Step 195: 88076 + 454 = 88530
Step 196: 88530 + 454 = 88984
Step 197: 88984 + 454 = 89438
Step 198: 89438 + 454 = 89892
Step 199: 89892 + 454 = 90346
Step 200: 90346 + 454 = 90800
Step 201: 90800 + 454 = 91254
Step 202: 91254 + 454 = 91708
Step 203: 91708 + 454 = 92162
Step 204: 92162 + 454 = 92616
Step 205: 92616 + 454 = 93070
Step 206: 93070 + 454 = 93524
Step 207: 93524 + 454 = 93978
Step 208: 93978 + 454 = 94432
Step 209: 94432 + 454 = 94886
Step 210: 94886 + 454 = 95340
Step 211: 95340 + 454 = 95794
Step 212: 95794 + 454 = 96248
Step 213: 96248 + 454 = 96702
Step 214: 96702 + 454 = 97156
Step 215: 97156 + 454 = 97610
Step 216: 97610 + 454 = 98064
Step 217: 98064 + 454 = 98518
Step 218: 98518 + 454 = 98972
Step 219: 98972 + 454 = 99426
Step 220: 99426 + 454 = 99880
Step 221: 99880 + 454 = 100334
Step 222: 100334 + 454 = 100788
Step 223: 100788 + 454 = 101242
Step 224: 101242 + 454 = 101696
Step 225: 101696 + 454 = 102150
Step 226: 102150 + 454 = 102604
Step 227: 102604 + 454 = 103058
Step 228: 103058 + 454 = 103512
Step 229: 103512 + 454 = 103966
Step 230: 103966 + 454 = 104420
Step 231: 104420 + 454 = 104874
Step 232: 104874 + 454 = 105328
Step 233: 105328 + 454 = 105782
Step 234: 105782 + 454 = 106236
Step 235: 106236 + 454 = 106690
Step 236: 106690 + 454 = 107144
Step 237: 107144 + 454 = 107598
Step 238: 107598 + 454 = 108052
Step 239: 108052 + 454 = 108506
Step 240: 108506 + 454 = 108960
Step 241: 108960 + 454 = 109414
Step 242: 109414 + 454 = 109868
Step 243: 109868 + 454 = 110322
Step 244: 110322 + 454 = 110776
Step 245: 110776 + 454 = 111230
Step 246: 111230 + 454 = 111684
Step 247: 111684 + 454 = 112138
Step 248: 112138 + 454 = 112592
Step 249: 112592 + 454 = 113046
Step 250: 113046 + 454 = 113500
Step 251: 113500 + 454 = 113954
Step 252: 113954 + 454 = 114408
Step 253: 114408 + 454 = 114862
Step 254: 114862 + 454 = 115316
Step 255: 115316 + 454 = 115770
Step 256: 115770 + 454 = 116224
Step 257: 116224 + 454 = 116678
Step 258: 116678 + 454 = 117132
Step 259: 117132 + 454 = 117586
Step 260: 117586 + 454 = 118040
Step 261: 118040 + 454 = 118494
Step 262: 118494 + 454 = 118948
Step 263: 118948 + 454 = 119402
Step 264: 119402 + 454 = 119856
Step 265: 119856 + 454 = 120310
Step 266: 120310 + 454 = 120764
Step 267: 120764 + 454 = 121218
Step 268: 121218 + 454 = 121672
Step 269: 121672 + 454 = 122126
Step 270: 122126 + 454 = 122580
Step 271: 122580 + 454 = 123034
Step 272: 123034 + 454 = 123488
Step 273: 123488 + 454 = 123942
Step 274: 123942 + 454 = 124396
Step 275: 124396 + 454 = 124850
Step 276: 124850 + 454 = 125304
Step 277: 125304 + 454 = 125758
Step 278: 125758 + 454 = 126212
Step 279: 126212 + 454 = 126666
Step 280: 126666 + 454 = 127120
Step 281: 127120 + 454 = 127574
Step 282: 127574 + 454 = 128028
Step 283: 128028 + 454 = 128482
Step 284: 128482 + 454 = 128936
Step 285: 128936 + 454 = 129390

So, 454*285 = 129390