OK, let's crack this. We're given 636 and our task is to multiply it by 445. Essentially, we'll be adding 636 to itself 445 times.
Step 1: 0 + 636 = 636
Step 2: 636 + 636 = 1272
Step 3: 1272 + 636 = 1908
Step 4: 1908 + 636 = 2544
Step 5: 2544 + 636 = 3180
Step 6: 3180 + 636 = 3816
Step 7: 3816 + 636 = 4452
Step 8: 4452 + 636 = 5088
Step 9: 5088 + 636 = 5724
Step 10: 5724 + 636 = 6360
Step 11: 6360 + 636 = 6996
Step 12: 6996 + 636 = 7632
Step 13: 7632 + 636 = 8268
Step 14: 8268 + 636 = 8904
Step 15: 8904 + 636 = 9540
Step 16: 9540 + 636 = 10176
Step 17: 10176 + 636 = 10812
Step 18: 10812 + 636 = 11448
Step 19: 11448 + 636 = 12084
Step 20: 12084 + 636 = 12720
Step 21: 12720 + 636 = 13356
Step 22: 13356 + 636 = 13992
Step 23: 13992 + 636 = 14628
Step 24: 14628 + 636 = 15264
Step 25: 15264 + 636 = 15900
Step 26: 15900 + 636 = 16536
Step 27: 16536 + 636 = 17172
Step 28: 17172 + 636 = 17808
Step 29: 17808 + 636 = 18444
Step 30: 18444 + 636 = 19080
Step 31: 19080 + 636 = 19716
Step 32: 19716 + 636 = 20352
Step 33: 20352 + 636 = 20988
Step 34: 20988 + 636 = 21624
Step 35: 21624 + 636 = 22260
Step 36: 22260 + 636 = 22896
Step 37: 22896 + 636 = 23532
Step 38: 23532 + 636 = 24168
Step 39: 24168 + 636 = 24804
Step 40: 24804 + 636 = 25440
Step 41: 25440 + 636 = 26076
Step 42: 26076 + 636 = 26712
Step 43: 26712 + 636 = 27348
Step 44: 27348 + 636 = 27984
Step 45: 27984 + 636 = 28620
Step 46: 28620 + 636 = 29256
Step 47: 29256 + 636 = 29892
Step 48: 29892 + 636 = 30528
Step 49: 30528 + 636 = 31164
Step 50: 31164 + 636 = 31800
Step 51: 31800 + 636 = 32436
Step 52: 32436 + 636 = 33072
Step 53: 33072 + 636 = 33708
Step 54: 33708 + 636 = 34344
Step 55: 34344 + 636 = 34980
Step 56: 34980 + 636 = 35616
Step 57: 35616 + 636 = 36252
Step 58: 36252 + 636 = 36888
Step 59: 36888 + 636 = 37524
Step 60: 37524 + 636 = 38160
Step 61: 38160 + 636 = 38796
Step 62: 38796 + 636 = 39432
Step 63: 39432 + 636 = 40068
Step 64: 40068 + 636 = 40704
Step 65: 40704 + 636 = 41340
Step 66: 41340 + 636 = 41976
Step 67: 41976 + 636 = 42612
Step 68: 42612 + 636 = 43248
Step 69: 43248 + 636 = 43884
Step 70: 43884 + 636 = 44520
Step 71: 44520 + 636 = 45156
Step 72: 45156 + 636 = 45792
Step 73: 45792 + 636 = 46428
Step 74: 46428 + 636 = 47064
Step 75: 47064 + 636 = 47700
Step 76: 47700 + 636 = 48336
Step 77: 48336 + 636 = 48972
Step 78: 48972 + 636 = 49608
Step 79: 49608 + 636 = 50244
Step 80: 50244 + 636 = 50880
Step 81: 50880 + 636 = 51516
Step 82: 51516 + 636 = 52152
Step 83: 52152 + 636 = 52788
Step 84: 52788 + 636 = 53424
Step 85: 53424 + 636 = 54060
Step 86: 54060 + 636 = 54696
Step 87: 54696 + 636 = 55332
Step 88: 55332 + 636 = 55968
Step 89: 55968 + 636 = 56604
Step 90: 56604 + 636 = 57240
Step 91: 57240 + 636 = 57876
Step 92: 57876 + 636 = 58512
Step 93: 58512 + 636 = 59148
Step 94: 59148 + 636 = 59784
Step 95: 59784 + 636 = 60420
Step 96: 60420 + 636 = 61056
Step 97: 61056 + 636 = 61692
Step 98: 61692 + 636 = 62328
Step 99: 62328 + 636 = 62964
Step 100: 62964 + 636 = 63600
Step 101: 63600 + 636 = 64236
Step 102: 64236 + 636 = 64872
Step 103: 64872 + 636 = 65508
Step 104: 65508 + 636 = 66144
Step 105: 66144 + 636 = 66780
Step 106: 66780 + 636 = 67416
Step 107: 67416 + 636 = 68052
Step 108: 68052 + 636 = 68688
Step 109: 68688 + 636 = 69324
Step 110: 69324 + 636 = 69960
Step 111: 69960 + 636 = 70596
Step 112: 70596 + 636 = 71232
Step 113: 71232 + 636 = 71868
Step 114: 71868 + 636 = 72504
Step 115: 72504 + 636 = 73140
Step 116: 73140 + 636 = 73776
Step 117: 73776 + 636 = 74412
Step 118: 74412 + 636 = 75048
Step 119: 75048 + 636 = 75684
Step 120: 75684 + 636 = 76320
Step 121: 76320 + 636 = 76956
Step 122: 76956 + 636 = 77592
Step 123: 77592 + 636 = 78228
Step 124: 78228 + 636 = 78864
Step 125: 78864 + 636 = 79500
Step 126: 79500 + 636 = 80136
Step 127: 80136 + 636 = 80772
Step 128: 80772 + 636 = 81408
Step 129: 81408 + 636 = 82044
Step 130: 82044 + 636 = 82680
Step 131: 82680 + 636 = 83316
Step 132: 83316 + 636 = 83952
Step 133: 83952 + 636 = 84588
Step 134: 84588 + 636 = 85224
Step 135: 85224 + 636 = 85860
Step 136: 85860 + 636 = 86496
Step 137: 86496 + 636 = 87132
Step 138: 87132 + 636 = 87768
Step 139: 87768 + 636 = 88404
Step 140: 88404 + 636 = 89040
Step 141: 89040 + 636 = 89676
Step 142: 89676 + 636 = 90312
Step 143: 90312 + 636 = 90948
Step 144: 90948 + 636 = 91584
Step 145: 91584 + 636 = 92220
Step 146: 92220 + 636 = 92856
Step 147: 92856 + 636 = 93492
Step 148: 93492 + 636 = 94128
Step 149: 94128 + 636 = 94764
Step 150: 94764 + 636 = 95400
Step 151: 95400 + 636 = 96036
Step 152: 96036 + 636 = 96672
Step 153: 96672 + 636 = 97308
Step 154: 97308 + 636 = 97944
Step 155: 97944 + 636 = 98580
Step 156: 98580 + 636 = 99216
Step 157: 99216 + 636 = 99852
Step 158: 99852 + 636 = 100488
Step 159: 100488 + 636 = 101124
Step 160: 101124 + 636 = 101760
Step 161: 101760 + 636 = 102396
Step 162: 102396 + 636 = 103032
Step 163: 103032 + 636 = 103668
Step 164: 103668 + 636 = 104304
Step 165: 104304 + 636 = 104940
Step 166: 104940 + 636 = 105576
Step 167: 105576 + 636 = 106212
Step 168: 106212 + 636 = 106848
Step 169: 106848 + 636 = 107484
Step 170: 107484 + 636 = 108120
Step 171: 108120 + 636 = 108756
Step 172: 108756 + 636 = 109392
Step 173: 109392 + 636 = 110028
Step 174: 110028 + 636 = 110664
Step 175: 110664 + 636 = 111300
Step 176: 111300 + 636 = 111936
Step 177: 111936 + 636 = 112572
Step 178: 112572 + 636 = 113208
Step 179: 113208 + 636 = 113844
Step 180: 113844 + 636 = 114480
Step 181: 114480 + 636 = 115116
Step 182: 115116 + 636 = 115752
Step 183: 115752 + 636 = 116388
Step 184: 116388 + 636 = 117024
Step 185: 117024 + 636 = 117660
Step 186: 117660 + 636 = 118296
Step 187: 118296 + 636 = 118932
Step 188: 118932 + 636 = 119568
Step 189: 119568 + 636 = 120204
Step 190: 120204 + 636 = 120840
Step 191: 120840 + 636 = 121476
Step 192: 121476 + 636 = 122112
Step 193: 122112 + 636 = 122748
Step 194: 122748 + 636 = 123384
Step 195: 123384 + 636 = 124020
Step 196: 124020 + 636 = 124656
Step 197: 124656 + 636 = 125292
Step 198: 125292 + 636 = 125928
Step 199: 125928 + 636 = 126564
Step 200: 126564 + 636 = 127200
Step 201: 127200 + 636 = 127836
Step 202: 127836 + 636 = 128472
Step 203: 128472 + 636 = 129108
Step 204: 129108 + 636 = 129744
Step 205: 129744 + 636 = 130380
Step 206: 130380 + 636 = 131016
Step 207: 131016 + 636 = 131652
Step 208: 131652 + 636 = 132288
Step 209: 132288 + 636 = 132924
Step 210: 132924 + 636 = 133560
Step 211: 133560 + 636 = 134196
Step 212: 134196 + 636 = 134832
Step 213: 134832 + 636 = 135468
Step 214: 135468 + 636 = 136104
Step 215: 136104 + 636 = 136740
Step 216: 136740 + 636 = 137376
Step 217: 137376 + 636 = 138012
Step 218: 138012 + 636 = 138648
Step 219: 138648 + 636 = 139284
Step 220: 139284 + 636 = 139920
Step 221: 139920 + 636 = 140556
Step 222: 140556 + 636 = 141192
Step 223: 141192 + 636 = 141828
Step 224: 141828 + 636 = 142464
Step 225: 142464 + 636 = 143100
Step 226: 143100 + 636 = 143736
Step 227: 143736 + 636 = 144372
Step 228: 144372 + 636 = 145008
Step 229: 145008 + 636 = 145644
Step 230: 145644 + 636 = 146280
Step 231: 146280 + 636 = 146916
Step 232: 146916 + 636 = 147552
Step 233: 147552 + 636 = 148188
Step 234: 148188 + 636 = 148824
Step 235: 148824 + 636 = 149460
Step 236: 149460 + 636 = 150096
Step 237: 150096 + 636 = 150732
Step 238: 150732 + 636 = 151368
Step 239: 151368 + 636 = 152004
Step 240: 152004 + 636 = 152640
Step 241: 152640 + 636 = 153276
Step 242: 153276 + 636 = 153912
Step 243: 153912 + 636 = 154548
Step 244: 154548 + 636 = 155184
Step 245: 155184 + 636 = 155820
Step 246: 155820 + 636 = 156456
Step 247: 156456 + 636 = 157092
Step 248: 157092 + 636 = 157728
Step 249: 157728 + 636 = 158364
Step 250: 158364 + 636 = 159000
Step 251: 159000 + 636 = 159636
Step 252: 159636 + 636 = 160272
Step 253: 160272 + 636 = 160908
Step 254: 160908 + 636 = 161544
Step 255: 161544 + 636 = 162180
Step 256: 162180 + 636 = 162816
Step 257: 162816 + 636 = 163452
Step 258: 163452 + 636 = 164088
Step 259: 164088 + 636 = 164724
Step 260: 164724 + 636 = 165360
Step 261: 165360 + 636 = 165996
Step 262: 165996 + 636 = 166632
Step 263: 166632 + 636 = 167268
Step 264: 167268 + 636 = 167904
Step 265: 167904 + 636 = 168540
Step 266: 168540 + 636 = 169176
Step 267: 169176 + 636 = 169812
Step 268: 169812 + 636 = 170448
Step 269: 170448 + 636 = 171084
Step 270: 171084 + 636 = 171720
Step 271: 171720 + 636 = 172356
Step 272: 172356 + 636 = 172992
Step 273: 172992 + 636 = 173628
Step 274: 173628 + 636 = 174264
Step 275: 174264 + 636 = 174900
Step 276: 174900 + 636 = 175536
Step 277: 175536 + 636 = 176172
Step 278: 176172 + 636 = 176808
Step 279: 176808 + 636 = 177444
Step 280: 177444 + 636 = 178080
Step 281: 178080 + 636 = 178716
Step 282: 178716 + 636 = 179352
Step 283: 179352 + 636 = 179988
Step 284: 179988 + 636 = 180624
Step 285: 180624 + 636 = 181260
Step 286: 181260 + 636 = 181896
Step 287: 181896 + 636 = 182532
Step 288: 182532 + 636 = 183168
Step 289: 183168 + 636 = 183804
Step 290: 183804 + 636 = 184440
Step 291: 184440 + 636 = 185076
Step 292: 185076 + 636 = 185712
Step 293: 185712 + 636 = 186348
Step 294: 186348 + 636 = 186984
Step 295: 186984 + 636 = 187620
Step 296: 187620 + 636 = 188256
Step 297: 188256 + 636 = 188892
Step 298: 188892 + 636 = 189528
Step 299: 189528 + 636 = 190164
Step 300: 190164 + 636 = 190800
Step 301: 190800 + 636 = 191436
Step 302: 191436 + 636 = 192072
Step 303: 192072 + 636 = 192708
Step 304: 192708 + 636 = 193344
Step 305: 193344 + 636 = 193980
Step 306: 193980 + 636 = 194616
Step 307: 194616 + 636 = 195252
Step 308: 195252 + 636 = 195888
Step 309: 195888 + 636 = 196524
Step 310: 196524 + 636 = 197160
Step 311: 197160 + 636 = 197796
Step 312: 197796 + 636 = 198432
Step 313: 198432 + 636 = 199068
Step 314: 199068 + 636 = 199704
Step 315: 199704 + 636 = 200340
Step 316: 200340 + 636 = 200976
Step 317: 200976 + 636 = 201612
Step 318: 201612 + 636 = 202248
Step 319: 202248 + 636 = 202884
Step 320: 202884 + 636 = 203520
Step 321: 203520 + 636 = 204156
Step 322: 204156 + 636 = 204792
Step 323: 204792 + 636 = 205428
Step 324: 205428 + 636 = 206064
Step 325: 206064 + 636 = 206700
Step 326: 206700 + 636 = 207336
Step 327: 207336 + 636 = 207972
Step 328: 207972 + 636 = 208608
Step 329: 208608 + 636 = 209244
Step 330: 209244 + 636 = 209880
Step 331: 209880 + 636 = 210516
Step 332: 210516 + 636 = 211152
Step 333: 211152 + 636 = 211788
Step 334: 211788 + 636 = 212424
Step 335: 212424 + 636 = 213060
Step 336: 213060 + 636 = 213696
Step 337: 213696 + 636 = 214332
Step 338: 214332 + 636 = 214968
Step 339: 214968 + 636 = 215604
Step 340: 215604 + 636 = 216240
Step 341: 216240 + 636 = 216876
Step 342: 216876 + 636 = 217512
Step 343: 217512 + 636 = 218148
Step 344: 218148 + 636 = 218784
Step 345: 218784 + 636 = 219420
Step 346: 219420 + 636 = 220056
Step 347: 220056 + 636 = 220692
Step 348: 220692 + 636 = 221328
Step 349: 221328 + 636 = 221964
Step 350: 221964 + 636 = 222600
Step 351: 222600 + 636 = 223236
Step 352: 223236 + 636 = 223872
Step 353: 223872 + 636 = 224508
Step 354: 224508 + 636 = 225144
Step 355: 225144 + 636 = 225780
Step 356: 225780 + 636 = 226416
Step 357: 226416 + 636 = 227052
Step 358: 227052 + 636 = 227688
Step 359: 227688 + 636 = 228324
Step 360: 228324 + 636 = 228960
Step 361: 228960 + 636 = 229596
Step 362: 229596 + 636 = 230232
Step 363: 230232 + 636 = 230868
Step 364: 230868 + 636 = 231504
Step 365: 231504 + 636 = 232140
Step 366: 232140 + 636 = 232776
Step 367: 232776 + 636 = 233412
Step 368: 233412 + 636 = 234048
Step 369: 234048 + 636 = 234684
Step 370: 234684 + 636 = 235320
Step 371: 235320 + 636 = 235956
Step 372: 235956 + 636 = 236592
Step 373: 236592 + 636 = 237228
Step 374: 237228 + 636 = 237864
Step 375: 237864 + 636 = 238500
Step 376: 238500 + 636 = 239136
Step 377: 239136 + 636 = 239772
Step 378: 239772 + 636 = 240408
Step 379: 240408 + 636 = 241044
Step 380: 241044 + 636 = 241680
Step 381: 241680 + 636 = 242316
Step 382: 242316 + 636 = 242952
Step 383: 242952 + 636 = 243588
Step 384: 243588 + 636 = 244224
Step 385: 244224 + 636 = 244860
Step 386: 244860 + 636 = 245496
Step 387: 245496 + 636 = 246132
Step 388: 246132 + 636 = 246768
Step 389: 246768 + 636 = 247404
Step 390: 247404 + 636 = 248040
Step 391: 248040 + 636 = 248676
Step 392: 248676 + 636 = 249312
Step 393: 249312 + 636 = 249948
Step 394: 249948 + 636 = 250584
Step 395: 250584 + 636 = 251220
Step 396: 251220 + 636 = 251856
Step 397: 251856 + 636 = 252492
Step 398: 252492 + 636 = 253128
Step 399: 253128 + 636 = 253764
Step 400: 253764 + 636 = 254400
Step 401: 254400 + 636 = 255036
Step 402: 255036 + 636 = 255672
Step 403: 255672 + 636 = 256308
Step 404: 256308 + 636 = 256944
Step 405: 256944 + 636 = 257580
Step 406: 257580 + 636 = 258216
Step 407: 258216 + 636 = 258852
Step 408: 258852 + 636 = 259488
Step 409: 259488 + 636 = 260124
Step 410: 260124 + 636 = 260760
Step 411: 260760 + 636 = 261396
Step 412: 261396 + 636 = 262032
Step 413: 262032 + 636 = 262668
Step 414: 262668 + 636 = 263304
Step 415: 263304 + 636 = 263940
Step 416: 263940 + 636 = 264576
Step 417: 264576 + 636 = 265212
Step 418: 265212 + 636 = 265848
Step 419: 265848 + 636 = 266484
Step 420: 266484 + 636 = 267120
Step 421: 267120 + 636 = 267756
Step 422: 267756 + 636 = 268392
Step 423: 268392 + 636 = 269028
Step 424: 269028 + 636 = 269664
Step 425: 269664 + 636 = 270300
Step 426: 270300 + 636 = 270936
Step 427: 270936 + 636 = 271572
Step 428: 271572 + 636 = 272208
Step 429: 272208 + 636 = 272844
Step 430: 272844 + 636 = 273480
Step 431: 273480 + 636 = 274116
Step 432: 274116 + 636 = 274752
Step 433: 274752 + 636 = 275388
Step 434: 275388 + 636 = 276024
Step 435: 276024 + 636 = 276660
Step 436: 276660 + 636 = 277296
Step 437: 277296 + 636 = 277932
Step 438: 277932 + 636 = 278568
Step 439: 278568 + 636 = 279204
Step 440: 279204 + 636 = 279840
Step 441: 279840 + 636 = 280476
Step 442: 280476 + 636 = 281112
Step 443: 281112 + 636 = 281748
Step 444: 281748 + 636 = 282384
Step 445: 282384 + 636 = 283020

So, 636*445 = 283020