OK, let's work through this together. We're starting with 996 and we're going to multiply it by 456, which means we add 996 to itself 456 times.
Step 1: 0 + 996 = 996
Step 2: 996 + 996 = 1992
Step 3: 1992 + 996 = 2988
Step 4: 2988 + 996 = 3984
Step 5: 3984 + 996 = 4980
Step 6: 4980 + 996 = 5976
Step 7: 5976 + 996 = 6972
Step 8: 6972 + 996 = 7968
Step 9: 7968 + 996 = 8964
Step 10: 8964 + 996 = 9960
Step 11: 9960 + 996 = 10956
Step 12: 10956 + 996 = 11952
Step 13: 11952 + 996 = 12948
Step 14: 12948 + 996 = 13944
Step 15: 13944 + 996 = 14940
Step 16: 14940 + 996 = 15936
Step 17: 15936 + 996 = 16932
Step 18: 16932 + 996 = 17928
Step 19: 17928 + 996 = 18924
Step 20: 18924 + 996 = 19920
Step 21: 19920 + 996 = 20916
Step 22: 20916 + 996 = 21912
Step 23: 21912 + 996 = 22908
Step 24: 22908 + 996 = 23904
Step 25: 23904 + 996 = 24900
Step 26: 24900 + 996 = 25896
Step 27: 25896 + 996 = 26892
Step 28: 26892 + 996 = 27888
Step 29: 27888 + 996 = 28884
Step 30: 28884 + 996 = 29880
Step 31: 29880 + 996 = 30876
Step 32: 30876 + 996 = 31872
Step 33: 31872 + 996 = 32868
Step 34: 32868 + 996 = 33864
Step 35: 33864 + 996 = 34860
Step 36: 34860 + 996 = 35856
Step 37: 35856 + 996 = 36852
Step 38: 36852 + 996 = 37848
Step 39: 37848 + 996 = 38844
Step 40: 38844 + 996 = 39840
Step 41: 39840 + 996 = 40836
Step 42: 40836 + 996 = 41832
Step 43: 41832 + 996 = 42828
Step 44: 42828 + 996 = 43824
Step 45: 43824 + 996 = 44820
Step 46: 44820 + 996 = 45816
Step 47: 45816 + 996 = 46812
Step 48: 46812 + 996 = 47808
Step 49: 47808 + 996 = 48804
Step 50: 48804 + 996 = 49800
Step 51: 49800 + 996 = 50796
Step 52: 50796 + 996 = 51792
Step 53: 51792 + 996 = 52788
Step 54: 52788 + 996 = 53784
Step 55: 53784 + 996 = 54780
Step 56: 54780 + 996 = 55776
Step 57: 55776 + 996 = 56772
Step 58: 56772 + 996 = 57768
Step 59: 57768 + 996 = 58764
Step 60: 58764 + 996 = 59760
Step 61: 59760 + 996 = 60756
Step 62: 60756 + 996 = 61752
Step 63: 61752 + 996 = 62748
Step 64: 62748 + 996 = 63744
Step 65: 63744 + 996 = 64740
Step 66: 64740 + 996 = 65736
Step 67: 65736 + 996 = 66732
Step 68: 66732 + 996 = 67728
Step 69: 67728 + 996 = 68724
Step 70: 68724 + 996 = 69720
Step 71: 69720 + 996 = 70716
Step 72: 70716 + 996 = 71712
Step 73: 71712 + 996 = 72708
Step 74: 72708 + 996 = 73704
Step 75: 73704 + 996 = 74700
Step 76: 74700 + 996 = 75696
Step 77: 75696 + 996 = 76692
Step 78: 76692 + 996 = 77688
Step 79: 77688 + 996 = 78684
Step 80: 78684 + 996 = 79680
Step 81: 79680 + 996 = 80676
Step 82: 80676 + 996 = 81672
Step 83: 81672 + 996 = 82668
Step 84: 82668 + 996 = 83664
Step 85: 83664 + 996 = 84660
Step 86: 84660 + 996 = 85656
Step 87: 85656 + 996 = 86652
Step 88: 86652 + 996 = 87648
Step 89: 87648 + 996 = 88644
Step 90: 88644 + 996 = 89640
Step 91: 89640 + 996 = 90636
Step 92: 90636 + 996 = 91632
Step 93: 91632 + 996 = 92628
Step 94: 92628 + 996 = 93624
Step 95: 93624 + 996 = 94620
Step 96: 94620 + 996 = 95616
Step 97: 95616 + 996 = 96612
Step 98: 96612 + 996 = 97608
Step 99: 97608 + 996 = 98604
Step 100: 98604 + 996 = 99600
Step 101: 99600 + 996 = 100596
Step 102: 100596 + 996 = 101592
Step 103: 101592 + 996 = 102588
Step 104: 102588 + 996 = 103584
Step 105: 103584 + 996 = 104580
Step 106: 104580 + 996 = 105576
Step 107: 105576 + 996 = 106572
Step 108: 106572 + 996 = 107568
Step 109: 107568 + 996 = 108564
Step 110: 108564 + 996 = 109560
Step 111: 109560 + 996 = 110556
Step 112: 110556 + 996 = 111552
Step 113: 111552 + 996 = 112548
Step 114: 112548 + 996 = 113544
Step 115: 113544 + 996 = 114540
Step 116: 114540 + 996 = 115536
Step 117: 115536 + 996 = 116532
Step 118: 116532 + 996 = 117528
Step 119: 117528 + 996 = 118524
Step 120: 118524 + 996 = 119520
Step 121: 119520 + 996 = 120516
Step 122: 120516 + 996 = 121512
Step 123: 121512 + 996 = 122508
Step 124: 122508 + 996 = 123504
Step 125: 123504 + 996 = 124500
Step 126: 124500 + 996 = 125496
Step 127: 125496 + 996 = 126492
Step 128: 126492 + 996 = 127488
Step 129: 127488 + 996 = 128484
Step 130: 128484 + 996 = 129480
Step 131: 129480 + 996 = 130476
Step 132: 130476 + 996 = 131472
Step 133: 131472 + 996 = 132468
Step 134: 132468 + 996 = 133464
Step 135: 133464 + 996 = 134460
Step 136: 134460 + 996 = 135456
Step 137: 135456 + 996 = 136452
Step 138: 136452 + 996 = 137448
Step 139: 137448 + 996 = 138444
Step 140: 138444 + 996 = 139440
Step 141: 139440 + 996 = 140436
Step 142: 140436 + 996 = 141432
Step 143: 141432 + 996 = 142428
Step 144: 142428 + 996 = 143424
Step 145: 143424 + 996 = 144420
Step 146: 144420 + 996 = 145416
Step 147: 145416 + 996 = 146412
Step 148: 146412 + 996 = 147408
Step 149: 147408 + 996 = 148404
Step 150: 148404 + 996 = 149400
Step 151: 149400 + 996 = 150396
Step 152: 150396 + 996 = 151392
Step 153: 151392 + 996 = 152388
Step 154: 152388 + 996 = 153384
Step 155: 153384 + 996 = 154380
Step 156: 154380 + 996 = 155376
Step 157: 155376 + 996 = 156372
Step 158: 156372 + 996 = 157368
Step 159: 157368 + 996 = 158364
Step 160: 158364 + 996 = 159360
Step 161: 159360 + 996 = 160356
Step 162: 160356 + 996 = 161352
Step 163: 161352 + 996 = 162348
Step 164: 162348 + 996 = 163344
Step 165: 163344 + 996 = 164340
Step 166: 164340 + 996 = 165336
Step 167: 165336 + 996 = 166332
Step 168: 166332 + 996 = 167328
Step 169: 167328 + 996 = 168324
Step 170: 168324 + 996 = 169320
Step 171: 169320 + 996 = 170316
Step 172: 170316 + 996 = 171312
Step 173: 171312 + 996 = 172308
Step 174: 172308 + 996 = 173304
Step 175: 173304 + 996 = 174300
Step 176: 174300 + 996 = 175296
Step 177: 175296 + 996 = 176292
Step 178: 176292 + 996 = 177288
Step 179: 177288 + 996 = 178284
Step 180: 178284 + 996 = 179280
Step 181: 179280 + 996 = 180276
Step 182: 180276 + 996 = 181272
Step 183: 181272 + 996 = 182268
Step 184: 182268 + 996 = 183264
Step 185: 183264 + 996 = 184260
Step 186: 184260 + 996 = 185256
Step 187: 185256 + 996 = 186252
Step 188: 186252 + 996 = 187248
Step 189: 187248 + 996 = 188244
Step 190: 188244 + 996 = 189240
Step 191: 189240 + 996 = 190236
Step 192: 190236 + 996 = 191232
Step 193: 191232 + 996 = 192228
Step 194: 192228 + 996 = 193224
Step 195: 193224 + 996 = 194220
Step 196: 194220 + 996 = 195216
Step 197: 195216 + 996 = 196212
Step 198: 196212 + 996 = 197208
Step 199: 197208 + 996 = 198204
Step 200: 198204 + 996 = 199200
Step 201: 199200 + 996 = 200196
Step 202: 200196 + 996 = 201192
Step 203: 201192 + 996 = 202188
Step 204: 202188 + 996 = 203184
Step 205: 203184 + 996 = 204180
Step 206: 204180 + 996 = 205176
Step 207: 205176 + 996 = 206172
Step 208: 206172 + 996 = 207168
Step 209: 207168 + 996 = 208164
Step 210: 208164 + 996 = 209160
Step 211: 209160 + 996 = 210156
Step 212: 210156 + 996 = 211152
Step 213: 211152 + 996 = 212148
Step 214: 212148 + 996 = 213144
Step 215: 213144 + 996 = 214140
Step 216: 214140 + 996 = 215136
Step 217: 215136 + 996 = 216132
Step 218: 216132 + 996 = 217128
Step 219: 217128 + 996 = 218124
Step 220: 218124 + 996 = 219120
Step 221: 219120 + 996 = 220116
Step 222: 220116 + 996 = 221112
Step 223: 221112 + 996 = 222108
Step 224: 222108 + 996 = 223104
Step 225: 223104 + 996 = 224100
Step 226: 224100 + 996 = 225096
Step 227: 225096 + 996 = 226092
Step 228: 226092 + 996 = 227088
Step 229: 227088 + 996 = 228084
Step 230: 228084 + 996 = 229080
Step 231: 229080 + 996 = 230076
Step 232: 230076 + 996 = 231072
Step 233: 231072 + 996 = 232068
Step 234: 232068 + 996 = 233064
Step 235: 233064 + 996 = 234060
Step 236: 234060 + 996 = 235056
Step 237: 235056 + 996 = 236052
Step 238: 236052 + 996 = 237048
Step 239: 237048 + 996 = 238044
Step 240: 238044 + 996 = 239040
Step 241: 239040 + 996 = 240036
Step 242: 240036 + 996 = 241032
Step 243: 241032 + 996 = 242028
Step 244: 242028 + 996 = 243024
Step 245: 243024 + 996 = 244020
Step 246: 244020 + 996 = 245016
Step 247: 245016 + 996 = 246012
Step 248: 246012 + 996 = 247008
Step 249: 247008 + 996 = 248004
Step 250: 248004 + 996 = 249000
Step 251: 249000 + 996 = 249996
Step 252: 249996 + 996 = 250992
Step 253: 250992 + 996 = 251988
Step 254: 251988 + 996 = 252984
Step 255: 252984 + 996 = 253980
Step 256: 253980 + 996 = 254976
Step 257: 254976 + 996 = 255972
Step 258: 255972 + 996 = 256968
Step 259: 256968 + 996 = 257964
Step 260: 257964 + 996 = 258960
Step 261: 258960 + 996 = 259956
Step 262: 259956 + 996 = 260952
Step 263: 260952 + 996 = 261948
Step 264: 261948 + 996 = 262944
Step 265: 262944 + 996 = 263940
Step 266: 263940 + 996 = 264936
Step 267: 264936 + 996 = 265932
Step 268: 265932 + 996 = 266928
Step 269: 266928 + 996 = 267924
Step 270: 267924 + 996 = 268920
Step 271: 268920 + 996 = 269916
Step 272: 269916 + 996 = 270912
Step 273: 270912 + 996 = 271908
Step 274: 271908 + 996 = 272904
Step 275: 272904 + 996 = 273900
Step 276: 273900 + 996 = 274896
Step 277: 274896 + 996 = 275892
Step 278: 275892 + 996 = 276888
Step 279: 276888 + 996 = 277884
Step 280: 277884 + 996 = 278880
Step 281: 278880 + 996 = 279876
Step 282: 279876 + 996 = 280872
Step 283: 280872 + 996 = 281868
Step 284: 281868 + 996 = 282864
Step 285: 282864 + 996 = 283860
Step 286: 283860 + 996 = 284856
Step 287: 284856 + 996 = 285852
Step 288: 285852 + 996 = 286848
Step 289: 286848 + 996 = 287844
Step 290: 287844 + 996 = 288840
Step 291: 288840 + 996 = 289836
Step 292: 289836 + 996 = 290832
Step 293: 290832 + 996 = 291828
Step 294: 291828 + 996 = 292824
Step 295: 292824 + 996 = 293820
Step 296: 293820 + 996 = 294816
Step 297: 294816 + 996 = 295812
Step 298: 295812 + 996 = 296808
Step 299: 296808 + 996 = 297804
Step 300: 297804 + 996 = 298800
Step 301: 298800 + 996 = 299796
Step 302: 299796 + 996 = 300792
Step 303: 300792 + 996 = 301788
Step 304: 301788 + 996 = 302784
Step 305: 302784 + 996 = 303780
Step 306: 303780 + 996 = 304776
Step 307: 304776 + 996 = 305772
Step 308: 305772 + 996 = 306768
Step 309: 306768 + 996 = 307764
Step 310: 307764 + 996 = 308760
Step 311: 308760 + 996 = 309756
Step 312: 309756 + 996 = 310752
Step 313: 310752 + 996 = 311748
Step 314: 311748 + 996 = 312744
Step 315: 312744 + 996 = 313740
Step 316: 313740 + 996 = 314736
Step 317: 314736 + 996 = 315732
Step 318: 315732 + 996 = 316728
Step 319: 316728 + 996 = 317724
Step 320: 317724 + 996 = 318720
Step 321: 318720 + 996 = 319716
Step 322: 319716 + 996 = 320712
Step 323: 320712 + 996 = 321708
Step 324: 321708 + 996 = 322704
Step 325: 322704 + 996 = 323700
Step 326: 323700 + 996 = 324696
Step 327: 324696 + 996 = 325692
Step 328: 325692 + 996 = 326688
Step 329: 326688 + 996 = 327684
Step 330: 327684 + 996 = 328680
Step 331: 328680 + 996 = 329676
Step 332: 329676 + 996 = 330672
Step 333: 330672 + 996 = 331668
Step 334: 331668 + 996 = 332664
Step 335: 332664 + 996 = 333660
Step 336: 333660 + 996 = 334656
Step 337: 334656 + 996 = 335652
Step 338: 335652 + 996 = 336648
Step 339: 336648 + 996 = 337644
Step 340: 337644 + 996 = 338640
Step 341: 338640 + 996 = 339636
Step 342: 339636 + 996 = 340632
Step 343: 340632 + 996 = 341628
Step 344: 341628 + 996 = 342624
Step 345: 342624 + 996 = 343620
Step 346: 343620 + 996 = 344616
Step 347: 344616 + 996 = 345612
Step 348: 345612 + 996 = 346608
Step 349: 346608 + 996 = 347604
Step 350: 347604 + 996 = 348600
Step 351: 348600 + 996 = 349596
Step 352: 349596 + 996 = 350592
Step 353: 350592 + 996 = 351588
Step 354: 351588 + 996 = 352584
Step 355: 352584 + 996 = 353580
Step 356: 353580 + 996 = 354576
Step 357: 354576 + 996 = 355572
Step 358: 355572 + 996 = 356568
Step 359: 356568 + 996 = 357564
Step 360: 357564 + 996 = 358560
Step 361: 358560 + 996 = 359556
Step 362: 359556 + 996 = 360552
Step 363: 360552 + 996 = 361548
Step 364: 361548 + 996 = 362544
Step 365: 362544 + 996 = 363540
Step 366: 363540 + 996 = 364536
Step 367: 364536 + 996 = 365532
Step 368: 365532 + 996 = 366528
Step 369: 366528 + 996 = 367524
Step 370: 367524 + 996 = 368520
Step 371: 368520 + 996 = 369516
Step 372: 369516 + 996 = 370512
Step 373: 370512 + 996 = 371508
Step 374: 371508 + 996 = 372504
Step 375: 372504 + 996 = 373500
Step 376: 373500 + 996 = 374496
Step 377: 374496 + 996 = 375492
Step 378: 375492 + 996 = 376488
Step 379: 376488 + 996 = 377484
Step 380: 377484 + 996 = 378480
Step 381: 378480 + 996 = 379476
Step 382: 379476 + 996 = 380472
Step 383: 380472 + 996 = 381468
Step 384: 381468 + 996 = 382464
Step 385: 382464 + 996 = 383460
Step 386: 383460 + 996 = 384456
Step 387: 384456 + 996 = 385452
Step 388: 385452 + 996 = 386448
Step 389: 386448 + 996 = 387444
Step 390: 387444 + 996 = 388440
Step 391: 388440 + 996 = 389436
Step 392: 389436 + 996 = 390432
Step 393: 390432 + 996 = 391428
Step 394: 391428 + 996 = 392424
Step 395: 392424 + 996 = 393420
Step 396: 393420 + 996 = 394416
Step 397: 394416 + 996 = 395412
Step 398: 395412 + 996 = 396408
Step 399: 396408 + 996 = 397404
Step 400: 397404 + 996 = 398400
Step 401: 398400 + 996 = 399396
Step 402: 399396 + 996 = 400392
Step 403: 400392 + 996 = 401388
Step 404: 401388 + 996 = 402384
Step 405: 402384 + 996 = 403380
Step 406: 403380 + 996 = 404376
Step 407: 404376 + 996 = 405372
Step 408: 405372 + 996 = 406368
Step 409: 406368 + 996 = 407364
Step 410: 407364 + 996 = 408360
Step 411: 408360 + 996 = 409356
Step 412: 409356 + 996 = 410352
Step 413: 410352 + 996 = 411348
Step 414: 411348 + 996 = 412344
Step 415: 412344 + 996 = 413340
Step 416: 413340 + 996 = 414336
Step 417: 414336 + 996 = 415332
Step 418: 415332 + 996 = 416328
Step 419: 416328 + 996 = 417324
Step 420: 417324 + 996 = 418320
Step 421: 418320 + 996 = 419316
Step 422: 419316 + 996 = 420312
Step 423: 420312 + 996 = 421308
Step 424: 421308 + 996 = 422304
Step 425: 422304 + 996 = 423300
Step 426: 423300 + 996 = 424296
Step 427: 424296 + 996 = 425292
Step 428: 425292 + 996 = 426288
Step 429: 426288 + 996 = 427284
Step 430: 427284 + 996 = 428280
Step 431: 428280 + 996 = 429276
Step 432: 429276 + 996 = 430272
Step 433: 430272 + 996 = 431268
Step 434: 431268 + 996 = 432264
Step 435: 432264 + 996 = 433260
Step 436: 433260 + 996 = 434256
Step 437: 434256 + 996 = 435252
Step 438: 435252 + 996 = 436248
Step 439: 436248 + 996 = 437244
Step 440: 437244 + 996 = 438240
Step 441: 438240 + 996 = 439236
Step 442: 439236 + 996 = 440232
Step 443: 440232 + 996 = 441228
Step 444: 441228 + 996 = 442224
Step 445: 442224 + 996 = 443220
Step 446: 443220 + 996 = 444216
Step 447: 444216 + 996 = 445212
Step 448: 445212 + 996 = 446208
Step 449: 446208 + 996 = 447204
Step 450: 447204 + 996 = 448200
Step 451: 448200 + 996 = 449196
Step 452: 449196 + 996 = 450192
Step 453: 450192 + 996 = 451188
Step 454: 451188 + 996 = 452184
Step 455: 452184 + 996 = 453180
Step 456: 453180 + 996 = 454176

So, 996*456 = 454176