Let's roll up our sleeves and solve this. We have 916 and we're going to multiply it by 457, essentially adding 916 to itself 457 times.
Step 1: 0 + 916 = 916
Step 2: 916 + 916 = 1832
Step 3: 1832 + 916 = 2748
Step 4: 2748 + 916 = 3664
Step 5: 3664 + 916 = 4580
Step 6: 4580 + 916 = 5496
Step 7: 5496 + 916 = 6412
Step 8: 6412 + 916 = 7328
Step 9: 7328 + 916 = 8244
Step 10: 8244 + 916 = 9160
Step 11: 9160 + 916 = 10076
Step 12: 10076 + 916 = 10992
Step 13: 10992 + 916 = 11908
Step 14: 11908 + 916 = 12824
Step 15: 12824 + 916 = 13740
Step 16: 13740 + 916 = 14656
Step 17: 14656 + 916 = 15572
Step 18: 15572 + 916 = 16488
Step 19: 16488 + 916 = 17404
Step 20: 17404 + 916 = 18320
Step 21: 18320 + 916 = 19236
Step 22: 19236 + 916 = 20152
Step 23: 20152 + 916 = 21068
Step 24: 21068 + 916 = 21984
Step 25: 21984 + 916 = 22900
Step 26: 22900 + 916 = 23816
Step 27: 23816 + 916 = 24732
Step 28: 24732 + 916 = 25648
Step 29: 25648 + 916 = 26564
Step 30: 26564 + 916 = 27480
Step 31: 27480 + 916 = 28396
Step 32: 28396 + 916 = 29312
Step 33: 29312 + 916 = 30228
Step 34: 30228 + 916 = 31144
Step 35: 31144 + 916 = 32060
Step 36: 32060 + 916 = 32976
Step 37: 32976 + 916 = 33892
Step 38: 33892 + 916 = 34808
Step 39: 34808 + 916 = 35724
Step 40: 35724 + 916 = 36640
Step 41: 36640 + 916 = 37556
Step 42: 37556 + 916 = 38472
Step 43: 38472 + 916 = 39388
Step 44: 39388 + 916 = 40304
Step 45: 40304 + 916 = 41220
Step 46: 41220 + 916 = 42136
Step 47: 42136 + 916 = 43052
Step 48: 43052 + 916 = 43968
Step 49: 43968 + 916 = 44884
Step 50: 44884 + 916 = 45800
Step 51: 45800 + 916 = 46716
Step 52: 46716 + 916 = 47632
Step 53: 47632 + 916 = 48548
Step 54: 48548 + 916 = 49464
Step 55: 49464 + 916 = 50380
Step 56: 50380 + 916 = 51296
Step 57: 51296 + 916 = 52212
Step 58: 52212 + 916 = 53128
Step 59: 53128 + 916 = 54044
Step 60: 54044 + 916 = 54960
Step 61: 54960 + 916 = 55876
Step 62: 55876 + 916 = 56792
Step 63: 56792 + 916 = 57708
Step 64: 57708 + 916 = 58624
Step 65: 58624 + 916 = 59540
Step 66: 59540 + 916 = 60456
Step 67: 60456 + 916 = 61372
Step 68: 61372 + 916 = 62288
Step 69: 62288 + 916 = 63204
Step 70: 63204 + 916 = 64120
Step 71: 64120 + 916 = 65036
Step 72: 65036 + 916 = 65952
Step 73: 65952 + 916 = 66868
Step 74: 66868 + 916 = 67784
Step 75: 67784 + 916 = 68700
Step 76: 68700 + 916 = 69616
Step 77: 69616 + 916 = 70532
Step 78: 70532 + 916 = 71448
Step 79: 71448 + 916 = 72364
Step 80: 72364 + 916 = 73280
Step 81: 73280 + 916 = 74196
Step 82: 74196 + 916 = 75112
Step 83: 75112 + 916 = 76028
Step 84: 76028 + 916 = 76944
Step 85: 76944 + 916 = 77860
Step 86: 77860 + 916 = 78776
Step 87: 78776 + 916 = 79692
Step 88: 79692 + 916 = 80608
Step 89: 80608 + 916 = 81524
Step 90: 81524 + 916 = 82440
Step 91: 82440 + 916 = 83356
Step 92: 83356 + 916 = 84272
Step 93: 84272 + 916 = 85188
Step 94: 85188 + 916 = 86104
Step 95: 86104 + 916 = 87020
Step 96: 87020 + 916 = 87936
Step 97: 87936 + 916 = 88852
Step 98: 88852 + 916 = 89768
Step 99: 89768 + 916 = 90684
Step 100: 90684 + 916 = 91600
Step 101: 91600 + 916 = 92516
Step 102: 92516 + 916 = 93432
Step 103: 93432 + 916 = 94348
Step 104: 94348 + 916 = 95264
Step 105: 95264 + 916 = 96180
Step 106: 96180 + 916 = 97096
Step 107: 97096 + 916 = 98012
Step 108: 98012 + 916 = 98928
Step 109: 98928 + 916 = 99844
Step 110: 99844 + 916 = 100760
Step 111: 100760 + 916 = 101676
Step 112: 101676 + 916 = 102592
Step 113: 102592 + 916 = 103508
Step 114: 103508 + 916 = 104424
Step 115: 104424 + 916 = 105340
Step 116: 105340 + 916 = 106256
Step 117: 106256 + 916 = 107172
Step 118: 107172 + 916 = 108088
Step 119: 108088 + 916 = 109004
Step 120: 109004 + 916 = 109920
Step 121: 109920 + 916 = 110836
Step 122: 110836 + 916 = 111752
Step 123: 111752 + 916 = 112668
Step 124: 112668 + 916 = 113584
Step 125: 113584 + 916 = 114500
Step 126: 114500 + 916 = 115416
Step 127: 115416 + 916 = 116332
Step 128: 116332 + 916 = 117248
Step 129: 117248 + 916 = 118164
Step 130: 118164 + 916 = 119080
Step 131: 119080 + 916 = 119996
Step 132: 119996 + 916 = 120912
Step 133: 120912 + 916 = 121828
Step 134: 121828 + 916 = 122744
Step 135: 122744 + 916 = 123660
Step 136: 123660 + 916 = 124576
Step 137: 124576 + 916 = 125492
Step 138: 125492 + 916 = 126408
Step 139: 126408 + 916 = 127324
Step 140: 127324 + 916 = 128240
Step 141: 128240 + 916 = 129156
Step 142: 129156 + 916 = 130072
Step 143: 130072 + 916 = 130988
Step 144: 130988 + 916 = 131904
Step 145: 131904 + 916 = 132820
Step 146: 132820 + 916 = 133736
Step 147: 133736 + 916 = 134652
Step 148: 134652 + 916 = 135568
Step 149: 135568 + 916 = 136484
Step 150: 136484 + 916 = 137400
Step 151: 137400 + 916 = 138316
Step 152: 138316 + 916 = 139232
Step 153: 139232 + 916 = 140148
Step 154: 140148 + 916 = 141064
Step 155: 141064 + 916 = 141980
Step 156: 141980 + 916 = 142896
Step 157: 142896 + 916 = 143812
Step 158: 143812 + 916 = 144728
Step 159: 144728 + 916 = 145644
Step 160: 145644 + 916 = 146560
Step 161: 146560 + 916 = 147476
Step 162: 147476 + 916 = 148392
Step 163: 148392 + 916 = 149308
Step 164: 149308 + 916 = 150224
Step 165: 150224 + 916 = 151140
Step 166: 151140 + 916 = 152056
Step 167: 152056 + 916 = 152972
Step 168: 152972 + 916 = 153888
Step 169: 153888 + 916 = 154804
Step 170: 154804 + 916 = 155720
Step 171: 155720 + 916 = 156636
Step 172: 156636 + 916 = 157552
Step 173: 157552 + 916 = 158468
Step 174: 158468 + 916 = 159384
Step 175: 159384 + 916 = 160300
Step 176: 160300 + 916 = 161216
Step 177: 161216 + 916 = 162132
Step 178: 162132 + 916 = 163048
Step 179: 163048 + 916 = 163964
Step 180: 163964 + 916 = 164880
Step 181: 164880 + 916 = 165796
Step 182: 165796 + 916 = 166712
Step 183: 166712 + 916 = 167628
Step 184: 167628 + 916 = 168544
Step 185: 168544 + 916 = 169460
Step 186: 169460 + 916 = 170376
Step 187: 170376 + 916 = 171292
Step 188: 171292 + 916 = 172208
Step 189: 172208 + 916 = 173124
Step 190: 173124 + 916 = 174040
Step 191: 174040 + 916 = 174956
Step 192: 174956 + 916 = 175872
Step 193: 175872 + 916 = 176788
Step 194: 176788 + 916 = 177704
Step 195: 177704 + 916 = 178620
Step 196: 178620 + 916 = 179536
Step 197: 179536 + 916 = 180452
Step 198: 180452 + 916 = 181368
Step 199: 181368 + 916 = 182284
Step 200: 182284 + 916 = 183200
Step 201: 183200 + 916 = 184116
Step 202: 184116 + 916 = 185032
Step 203: 185032 + 916 = 185948
Step 204: 185948 + 916 = 186864
Step 205: 186864 + 916 = 187780
Step 206: 187780 + 916 = 188696
Step 207: 188696 + 916 = 189612
Step 208: 189612 + 916 = 190528
Step 209: 190528 + 916 = 191444
Step 210: 191444 + 916 = 192360
Step 211: 192360 + 916 = 193276
Step 212: 193276 + 916 = 194192
Step 213: 194192 + 916 = 195108
Step 214: 195108 + 916 = 196024
Step 215: 196024 + 916 = 196940
Step 216: 196940 + 916 = 197856
Step 217: 197856 + 916 = 198772
Step 218: 198772 + 916 = 199688
Step 219: 199688 + 916 = 200604
Step 220: 200604 + 916 = 201520
Step 221: 201520 + 916 = 202436
Step 222: 202436 + 916 = 203352
Step 223: 203352 + 916 = 204268
Step 224: 204268 + 916 = 205184
Step 225: 205184 + 916 = 206100
Step 226: 206100 + 916 = 207016
Step 227: 207016 + 916 = 207932
Step 228: 207932 + 916 = 208848
Step 229: 208848 + 916 = 209764
Step 230: 209764 + 916 = 210680
Step 231: 210680 + 916 = 211596
Step 232: 211596 + 916 = 212512
Step 233: 212512 + 916 = 213428
Step 234: 213428 + 916 = 214344
Step 235: 214344 + 916 = 215260
Step 236: 215260 + 916 = 216176
Step 237: 216176 + 916 = 217092
Step 238: 217092 + 916 = 218008
Step 239: 218008 + 916 = 218924
Step 240: 218924 + 916 = 219840
Step 241: 219840 + 916 = 220756
Step 242: 220756 + 916 = 221672
Step 243: 221672 + 916 = 222588
Step 244: 222588 + 916 = 223504
Step 245: 223504 + 916 = 224420
Step 246: 224420 + 916 = 225336
Step 247: 225336 + 916 = 226252
Step 248: 226252 + 916 = 227168
Step 249: 227168 + 916 = 228084
Step 250: 228084 + 916 = 229000
Step 251: 229000 + 916 = 229916
Step 252: 229916 + 916 = 230832
Step 253: 230832 + 916 = 231748
Step 254: 231748 + 916 = 232664
Step 255: 232664 + 916 = 233580
Step 256: 233580 + 916 = 234496
Step 257: 234496 + 916 = 235412
Step 258: 235412 + 916 = 236328
Step 259: 236328 + 916 = 237244
Step 260: 237244 + 916 = 238160
Step 261: 238160 + 916 = 239076
Step 262: 239076 + 916 = 239992
Step 263: 239992 + 916 = 240908
Step 264: 240908 + 916 = 241824
Step 265: 241824 + 916 = 242740
Step 266: 242740 + 916 = 243656
Step 267: 243656 + 916 = 244572
Step 268: 244572 + 916 = 245488
Step 269: 245488 + 916 = 246404
Step 270: 246404 + 916 = 247320
Step 271: 247320 + 916 = 248236
Step 272: 248236 + 916 = 249152
Step 273: 249152 + 916 = 250068
Step 274: 250068 + 916 = 250984
Step 275: 250984 + 916 = 251900
Step 276: 251900 + 916 = 252816
Step 277: 252816 + 916 = 253732
Step 278: 253732 + 916 = 254648
Step 279: 254648 + 916 = 255564
Step 280: 255564 + 916 = 256480
Step 281: 256480 + 916 = 257396
Step 282: 257396 + 916 = 258312
Step 283: 258312 + 916 = 259228
Step 284: 259228 + 916 = 260144
Step 285: 260144 + 916 = 261060
Step 286: 261060 + 916 = 261976
Step 287: 261976 + 916 = 262892
Step 288: 262892 + 916 = 263808
Step 289: 263808 + 916 = 264724
Step 290: 264724 + 916 = 265640
Step 291: 265640 + 916 = 266556
Step 292: 266556 + 916 = 267472
Step 293: 267472 + 916 = 268388
Step 294: 268388 + 916 = 269304
Step 295: 269304 + 916 = 270220
Step 296: 270220 + 916 = 271136
Step 297: 271136 + 916 = 272052
Step 298: 272052 + 916 = 272968
Step 299: 272968 + 916 = 273884
Step 300: 273884 + 916 = 274800
Step 301: 274800 + 916 = 275716
Step 302: 275716 + 916 = 276632
Step 303: 276632 + 916 = 277548
Step 304: 277548 + 916 = 278464
Step 305: 278464 + 916 = 279380
Step 306: 279380 + 916 = 280296
Step 307: 280296 + 916 = 281212
Step 308: 281212 + 916 = 282128
Step 309: 282128 + 916 = 283044
Step 310: 283044 + 916 = 283960
Step 311: 283960 + 916 = 284876
Step 312: 284876 + 916 = 285792
Step 313: 285792 + 916 = 286708
Step 314: 286708 + 916 = 287624
Step 315: 287624 + 916 = 288540
Step 316: 288540 + 916 = 289456
Step 317: 289456 + 916 = 290372
Step 318: 290372 + 916 = 291288
Step 319: 291288 + 916 = 292204
Step 320: 292204 + 916 = 293120
Step 321: 293120 + 916 = 294036
Step 322: 294036 + 916 = 294952
Step 323: 294952 + 916 = 295868
Step 324: 295868 + 916 = 296784
Step 325: 296784 + 916 = 297700
Step 326: 297700 + 916 = 298616
Step 327: 298616 + 916 = 299532
Step 328: 299532 + 916 = 300448
Step 329: 300448 + 916 = 301364
Step 330: 301364 + 916 = 302280
Step 331: 302280 + 916 = 303196
Step 332: 303196 + 916 = 304112
Step 333: 304112 + 916 = 305028
Step 334: 305028 + 916 = 305944
Step 335: 305944 + 916 = 306860
Step 336: 306860 + 916 = 307776
Step 337: 307776 + 916 = 308692
Step 338: 308692 + 916 = 309608
Step 339: 309608 + 916 = 310524
Step 340: 310524 + 916 = 311440
Step 341: 311440 + 916 = 312356
Step 342: 312356 + 916 = 313272
Step 343: 313272 + 916 = 314188
Step 344: 314188 + 916 = 315104
Step 345: 315104 + 916 = 316020
Step 346: 316020 + 916 = 316936
Step 347: 316936 + 916 = 317852
Step 348: 317852 + 916 = 318768
Step 349: 318768 + 916 = 319684
Step 350: 319684 + 916 = 320600
Step 351: 320600 + 916 = 321516
Step 352: 321516 + 916 = 322432
Step 353: 322432 + 916 = 323348
Step 354: 323348 + 916 = 324264
Step 355: 324264 + 916 = 325180
Step 356: 325180 + 916 = 326096
Step 357: 326096 + 916 = 327012
Step 358: 327012 + 916 = 327928
Step 359: 327928 + 916 = 328844
Step 360: 328844 + 916 = 329760
Step 361: 329760 + 916 = 330676
Step 362: 330676 + 916 = 331592
Step 363: 331592 + 916 = 332508
Step 364: 332508 + 916 = 333424
Step 365: 333424 + 916 = 334340
Step 366: 334340 + 916 = 335256
Step 367: 335256 + 916 = 336172
Step 368: 336172 + 916 = 337088
Step 369: 337088 + 916 = 338004
Step 370: 338004 + 916 = 338920
Step 371: 338920 + 916 = 339836
Step 372: 339836 + 916 = 340752
Step 373: 340752 + 916 = 341668
Step 374: 341668 + 916 = 342584
Step 375: 342584 + 916 = 343500
Step 376: 343500 + 916 = 344416
Step 377: 344416 + 916 = 345332
Step 378: 345332 + 916 = 346248
Step 379: 346248 + 916 = 347164
Step 380: 347164 + 916 = 348080
Step 381: 348080 + 916 = 348996
Step 382: 348996 + 916 = 349912
Step 383: 349912 + 916 = 350828
Step 384: 350828 + 916 = 351744
Step 385: 351744 + 916 = 352660
Step 386: 352660 + 916 = 353576
Step 387: 353576 + 916 = 354492
Step 388: 354492 + 916 = 355408
Step 389: 355408 + 916 = 356324
Step 390: 356324 + 916 = 357240
Step 391: 357240 + 916 = 358156
Step 392: 358156 + 916 = 359072
Step 393: 359072 + 916 = 359988
Step 394: 359988 + 916 = 360904
Step 395: 360904 + 916 = 361820
Step 396: 361820 + 916 = 362736
Step 397: 362736 + 916 = 363652
Step 398: 363652 + 916 = 364568
Step 399: 364568 + 916 = 365484
Step 400: 365484 + 916 = 366400
Step 401: 366400 + 916 = 367316
Step 402: 367316 + 916 = 368232
Step 403: 368232 + 916 = 369148
Step 404: 369148 + 916 = 370064
Step 405: 370064 + 916 = 370980
Step 406: 370980 + 916 = 371896
Step 407: 371896 + 916 = 372812
Step 408: 372812 + 916 = 373728
Step 409: 373728 + 916 = 374644
Step 410: 374644 + 916 = 375560
Step 411: 375560 + 916 = 376476
Step 412: 376476 + 916 = 377392
Step 413: 377392 + 916 = 378308
Step 414: 378308 + 916 = 379224
Step 415: 379224 + 916 = 380140
Step 416: 380140 + 916 = 381056
Step 417: 381056 + 916 = 381972
Step 418: 381972 + 916 = 382888
Step 419: 382888 + 916 = 383804
Step 420: 383804 + 916 = 384720
Step 421: 384720 + 916 = 385636
Step 422: 385636 + 916 = 386552
Step 423: 386552 + 916 = 387468
Step 424: 387468 + 916 = 388384
Step 425: 388384 + 916 = 389300
Step 426: 389300 + 916 = 390216
Step 427: 390216 + 916 = 391132
Step 428: 391132 + 916 = 392048
Step 429: 392048 + 916 = 392964
Step 430: 392964 + 916 = 393880
Step 431: 393880 + 916 = 394796
Step 432: 394796 + 916 = 395712
Step 433: 395712 + 916 = 396628
Step 434: 396628 + 916 = 397544
Step 435: 397544 + 916 = 398460
Step 436: 398460 + 916 = 399376
Step 437: 399376 + 916 = 400292
Step 438: 400292 + 916 = 401208
Step 439: 401208 + 916 = 402124
Step 440: 402124 + 916 = 403040
Step 441: 403040 + 916 = 403956
Step 442: 403956 + 916 = 404872
Step 443: 404872 + 916 = 405788
Step 444: 405788 + 916 = 406704
Step 445: 406704 + 916 = 407620
Step 446: 407620 + 916 = 408536
Step 447: 408536 + 916 = 409452
Step 448: 409452 + 916 = 410368
Step 449: 410368 + 916 = 411284
Step 450: 411284 + 916 = 412200
Step 451: 412200 + 916 = 413116
Step 452: 413116 + 916 = 414032
Step 453: 414032 + 916 = 414948
Step 454: 414948 + 916 = 415864
Step 455: 415864 + 916 = 416780
Step 456: 416780 + 916 = 417696
Step 457: 417696 + 916 = 418612

So, 916*457 = 418612