OK, let's crack this. We're given 862 and our task is to multiply it by 307. Essentially, we'll be adding 862 to itself 307 times.
Step 1: 0 + 862 = 862
Step 2: 862 + 862 = 1724
Step 3: 1724 + 862 = 2586
Step 4: 2586 + 862 = 3448
Step 5: 3448 + 862 = 4310
Step 6: 4310 + 862 = 5172
Step 7: 5172 + 862 = 6034
Step 8: 6034 + 862 = 6896
Step 9: 6896 + 862 = 7758
Step 10: 7758 + 862 = 8620
Step 11: 8620 + 862 = 9482
Step 12: 9482 + 862 = 10344
Step 13: 10344 + 862 = 11206
Step 14: 11206 + 862 = 12068
Step 15: 12068 + 862 = 12930
Step 16: 12930 + 862 = 13792
Step 17: 13792 + 862 = 14654
Step 18: 14654 + 862 = 15516
Step 19: 15516 + 862 = 16378
Step 20: 16378 + 862 = 17240
Step 21: 17240 + 862 = 18102
Step 22: 18102 + 862 = 18964
Step 23: 18964 + 862 = 19826
Step 24: 19826 + 862 = 20688
Step 25: 20688 + 862 = 21550
Step 26: 21550 + 862 = 22412
Step 27: 22412 + 862 = 23274
Step 28: 23274 + 862 = 24136
Step 29: 24136 + 862 = 24998
Step 30: 24998 + 862 = 25860
Step 31: 25860 + 862 = 26722
Step 32: 26722 + 862 = 27584
Step 33: 27584 + 862 = 28446
Step 34: 28446 + 862 = 29308
Step 35: 29308 + 862 = 30170
Step 36: 30170 + 862 = 31032
Step 37: 31032 + 862 = 31894
Step 38: 31894 + 862 = 32756
Step 39: 32756 + 862 = 33618
Step 40: 33618 + 862 = 34480
Step 41: 34480 + 862 = 35342
Step 42: 35342 + 862 = 36204
Step 43: 36204 + 862 = 37066
Step 44: 37066 + 862 = 37928
Step 45: 37928 + 862 = 38790
Step 46: 38790 + 862 = 39652
Step 47: 39652 + 862 = 40514
Step 48: 40514 + 862 = 41376
Step 49: 41376 + 862 = 42238
Step 50: 42238 + 862 = 43100
Step 51: 43100 + 862 = 43962
Step 52: 43962 + 862 = 44824
Step 53: 44824 + 862 = 45686
Step 54: 45686 + 862 = 46548
Step 55: 46548 + 862 = 47410
Step 56: 47410 + 862 = 48272
Step 57: 48272 + 862 = 49134
Step 58: 49134 + 862 = 49996
Step 59: 49996 + 862 = 50858
Step 60: 50858 + 862 = 51720
Step 61: 51720 + 862 = 52582
Step 62: 52582 + 862 = 53444
Step 63: 53444 + 862 = 54306
Step 64: 54306 + 862 = 55168
Step 65: 55168 + 862 = 56030
Step 66: 56030 + 862 = 56892
Step 67: 56892 + 862 = 57754
Step 68: 57754 + 862 = 58616
Step 69: 58616 + 862 = 59478
Step 70: 59478 + 862 = 60340
Step 71: 60340 + 862 = 61202
Step 72: 61202 + 862 = 62064
Step 73: 62064 + 862 = 62926
Step 74: 62926 + 862 = 63788
Step 75: 63788 + 862 = 64650
Step 76: 64650 + 862 = 65512
Step 77: 65512 + 862 = 66374
Step 78: 66374 + 862 = 67236
Step 79: 67236 + 862 = 68098
Step 80: 68098 + 862 = 68960
Step 81: 68960 + 862 = 69822
Step 82: 69822 + 862 = 70684
Step 83: 70684 + 862 = 71546
Step 84: 71546 + 862 = 72408
Step 85: 72408 + 862 = 73270
Step 86: 73270 + 862 = 74132
Step 87: 74132 + 862 = 74994
Step 88: 74994 + 862 = 75856
Step 89: 75856 + 862 = 76718
Step 90: 76718 + 862 = 77580
Step 91: 77580 + 862 = 78442
Step 92: 78442 + 862 = 79304
Step 93: 79304 + 862 = 80166
Step 94: 80166 + 862 = 81028
Step 95: 81028 + 862 = 81890
Step 96: 81890 + 862 = 82752
Step 97: 82752 + 862 = 83614
Step 98: 83614 + 862 = 84476
Step 99: 84476 + 862 = 85338
Step 100: 85338 + 862 = 86200
Step 101: 86200 + 862 = 87062
Step 102: 87062 + 862 = 87924
Step 103: 87924 + 862 = 88786
Step 104: 88786 + 862 = 89648
Step 105: 89648 + 862 = 90510
Step 106: 90510 + 862 = 91372
Step 107: 91372 + 862 = 92234
Step 108: 92234 + 862 = 93096
Step 109: 93096 + 862 = 93958
Step 110: 93958 + 862 = 94820
Step 111: 94820 + 862 = 95682
Step 112: 95682 + 862 = 96544
Step 113: 96544 + 862 = 97406
Step 114: 97406 + 862 = 98268
Step 115: 98268 + 862 = 99130
Step 116: 99130 + 862 = 99992
Step 117: 99992 + 862 = 100854
Step 118: 100854 + 862 = 101716
Step 119: 101716 + 862 = 102578
Step 120: 102578 + 862 = 103440
Step 121: 103440 + 862 = 104302
Step 122: 104302 + 862 = 105164
Step 123: 105164 + 862 = 106026
Step 124: 106026 + 862 = 106888
Step 125: 106888 + 862 = 107750
Step 126: 107750 + 862 = 108612
Step 127: 108612 + 862 = 109474
Step 128: 109474 + 862 = 110336
Step 129: 110336 + 862 = 111198
Step 130: 111198 + 862 = 112060
Step 131: 112060 + 862 = 112922
Step 132: 112922 + 862 = 113784
Step 133: 113784 + 862 = 114646
Step 134: 114646 + 862 = 115508
Step 135: 115508 + 862 = 116370
Step 136: 116370 + 862 = 117232
Step 137: 117232 + 862 = 118094
Step 138: 118094 + 862 = 118956
Step 139: 118956 + 862 = 119818
Step 140: 119818 + 862 = 120680
Step 141: 120680 + 862 = 121542
Step 142: 121542 + 862 = 122404
Step 143: 122404 + 862 = 123266
Step 144: 123266 + 862 = 124128
Step 145: 124128 + 862 = 124990
Step 146: 124990 + 862 = 125852
Step 147: 125852 + 862 = 126714
Step 148: 126714 + 862 = 127576
Step 149: 127576 + 862 = 128438
Step 150: 128438 + 862 = 129300
Step 151: 129300 + 862 = 130162
Step 152: 130162 + 862 = 131024
Step 153: 131024 + 862 = 131886
Step 154: 131886 + 862 = 132748
Step 155: 132748 + 862 = 133610
Step 156: 133610 + 862 = 134472
Step 157: 134472 + 862 = 135334
Step 158: 135334 + 862 = 136196
Step 159: 136196 + 862 = 137058
Step 160: 137058 + 862 = 137920
Step 161: 137920 + 862 = 138782
Step 162: 138782 + 862 = 139644
Step 163: 139644 + 862 = 140506
Step 164: 140506 + 862 = 141368
Step 165: 141368 + 862 = 142230
Step 166: 142230 + 862 = 143092
Step 167: 143092 + 862 = 143954
Step 168: 143954 + 862 = 144816
Step 169: 144816 + 862 = 145678
Step 170: 145678 + 862 = 146540
Step 171: 146540 + 862 = 147402
Step 172: 147402 + 862 = 148264
Step 173: 148264 + 862 = 149126
Step 174: 149126 + 862 = 149988
Step 175: 149988 + 862 = 150850
Step 176: 150850 + 862 = 151712
Step 177: 151712 + 862 = 152574
Step 178: 152574 + 862 = 153436
Step 179: 153436 + 862 = 154298
Step 180: 154298 + 862 = 155160
Step 181: 155160 + 862 = 156022
Step 182: 156022 + 862 = 156884
Step 183: 156884 + 862 = 157746
Step 184: 157746 + 862 = 158608
Step 185: 158608 + 862 = 159470
Step 186: 159470 + 862 = 160332
Step 187: 160332 + 862 = 161194
Step 188: 161194 + 862 = 162056
Step 189: 162056 + 862 = 162918
Step 190: 162918 + 862 = 163780
Step 191: 163780 + 862 = 164642
Step 192: 164642 + 862 = 165504
Step 193: 165504 + 862 = 166366
Step 194: 166366 + 862 = 167228
Step 195: 167228 + 862 = 168090
Step 196: 168090 + 862 = 168952
Step 197: 168952 + 862 = 169814
Step 198: 169814 + 862 = 170676
Step 199: 170676 + 862 = 171538
Step 200: 171538 + 862 = 172400
Step 201: 172400 + 862 = 173262
Step 202: 173262 + 862 = 174124
Step 203: 174124 + 862 = 174986
Step 204: 174986 + 862 = 175848
Step 205: 175848 + 862 = 176710
Step 206: 176710 + 862 = 177572
Step 207: 177572 + 862 = 178434
Step 208: 178434 + 862 = 179296
Step 209: 179296 + 862 = 180158
Step 210: 180158 + 862 = 181020
Step 211: 181020 + 862 = 181882
Step 212: 181882 + 862 = 182744
Step 213: 182744 + 862 = 183606
Step 214: 183606 + 862 = 184468
Step 215: 184468 + 862 = 185330
Step 216: 185330 + 862 = 186192
Step 217: 186192 + 862 = 187054
Step 218: 187054 + 862 = 187916
Step 219: 187916 + 862 = 188778
Step 220: 188778 + 862 = 189640
Step 221: 189640 + 862 = 190502
Step 222: 190502 + 862 = 191364
Step 223: 191364 + 862 = 192226
Step 224: 192226 + 862 = 193088
Step 225: 193088 + 862 = 193950
Step 226: 193950 + 862 = 194812
Step 227: 194812 + 862 = 195674
Step 228: 195674 + 862 = 196536
Step 229: 196536 + 862 = 197398
Step 230: 197398 + 862 = 198260
Step 231: 198260 + 862 = 199122
Step 232: 199122 + 862 = 199984
Step 233: 199984 + 862 = 200846
Step 234: 200846 + 862 = 201708
Step 235: 201708 + 862 = 202570
Step 236: 202570 + 862 = 203432
Step 237: 203432 + 862 = 204294
Step 238: 204294 + 862 = 205156
Step 239: 205156 + 862 = 206018
Step 240: 206018 + 862 = 206880
Step 241: 206880 + 862 = 207742
Step 242: 207742 + 862 = 208604
Step 243: 208604 + 862 = 209466
Step 244: 209466 + 862 = 210328
Step 245: 210328 + 862 = 211190
Step 246: 211190 + 862 = 212052
Step 247: 212052 + 862 = 212914
Step 248: 212914 + 862 = 213776
Step 249: 213776 + 862 = 214638
Step 250: 214638 + 862 = 215500
Step 251: 215500 + 862 = 216362
Step 252: 216362 + 862 = 217224
Step 253: 217224 + 862 = 218086
Step 254: 218086 + 862 = 218948
Step 255: 218948 + 862 = 219810
Step 256: 219810 + 862 = 220672
Step 257: 220672 + 862 = 221534
Step 258: 221534 + 862 = 222396
Step 259: 222396 + 862 = 223258
Step 260: 223258 + 862 = 224120
Step 261: 224120 + 862 = 224982
Step 262: 224982 + 862 = 225844
Step 263: 225844 + 862 = 226706
Step 264: 226706 + 862 = 227568
Step 265: 227568 + 862 = 228430
Step 266: 228430 + 862 = 229292
Step 267: 229292 + 862 = 230154
Step 268: 230154 + 862 = 231016
Step 269: 231016 + 862 = 231878
Step 270: 231878 + 862 = 232740
Step 271: 232740 + 862 = 233602
Step 272: 233602 + 862 = 234464
Step 273: 234464 + 862 = 235326
Step 274: 235326 + 862 = 236188
Step 275: 236188 + 862 = 237050
Step 276: 237050 + 862 = 237912
Step 277: 237912 + 862 = 238774
Step 278: 238774 + 862 = 239636
Step 279: 239636 + 862 = 240498
Step 280: 240498 + 862 = 241360
Step 281: 241360 + 862 = 242222
Step 282: 242222 + 862 = 243084
Step 283: 243084 + 862 = 243946
Step 284: 243946 + 862 = 244808
Step 285: 244808 + 862 = 245670
Step 286: 245670 + 862 = 246532
Step 287: 246532 + 862 = 247394
Step 288: 247394 + 862 = 248256
Step 289: 248256 + 862 = 249118
Step 290: 249118 + 862 = 249980
Step 291: 249980 + 862 = 250842
Step 292: 250842 + 862 = 251704
Step 293: 251704 + 862 = 252566
Step 294: 252566 + 862 = 253428
Step 295: 253428 + 862 = 254290
Step 296: 254290 + 862 = 255152
Step 297: 255152 + 862 = 256014
Step 298: 256014 + 862 = 256876
Step 299: 256876 + 862 = 257738
Step 300: 257738 + 862 = 258600
Step 301: 258600 + 862 = 259462
Step 302: 259462 + 862 = 260324
Step 303: 260324 + 862 = 261186
Step 304: 261186 + 862 = 262048
Step 305: 262048 + 862 = 262910
Step 306: 262910 + 862 = 263772
Step 307: 263772 + 862 = 264634

So, 862*307 = 264634