OK, let's work through this together. We're starting with 694 and we're going to multiply it by 255, which means we add 694 to itself 255 times.
Step 1: 0 + 694 = 694
Step 2: 694 + 694 = 1388
Step 3: 1388 + 694 = 2082
Step 4: 2082 + 694 = 2776
Step 5: 2776 + 694 = 3470
Step 6: 3470 + 694 = 4164
Step 7: 4164 + 694 = 4858
Step 8: 4858 + 694 = 5552
Step 9: 5552 + 694 = 6246
Step 10: 6246 + 694 = 6940
Step 11: 6940 + 694 = 7634
Step 12: 7634 + 694 = 8328
Step 13: 8328 + 694 = 9022
Step 14: 9022 + 694 = 9716
Step 15: 9716 + 694 = 10410
Step 16: 10410 + 694 = 11104
Step 17: 11104 + 694 = 11798
Step 18: 11798 + 694 = 12492
Step 19: 12492 + 694 = 13186
Step 20: 13186 + 694 = 13880
Step 21: 13880 + 694 = 14574
Step 22: 14574 + 694 = 15268
Step 23: 15268 + 694 = 15962
Step 24: 15962 + 694 = 16656
Step 25: 16656 + 694 = 17350
Step 26: 17350 + 694 = 18044
Step 27: 18044 + 694 = 18738
Step 28: 18738 + 694 = 19432
Step 29: 19432 + 694 = 20126
Step 30: 20126 + 694 = 20820
Step 31: 20820 + 694 = 21514
Step 32: 21514 + 694 = 22208
Step 33: 22208 + 694 = 22902
Step 34: 22902 + 694 = 23596
Step 35: 23596 + 694 = 24290
Step 36: 24290 + 694 = 24984
Step 37: 24984 + 694 = 25678
Step 38: 25678 + 694 = 26372
Step 39: 26372 + 694 = 27066
Step 40: 27066 + 694 = 27760
Step 41: 27760 + 694 = 28454
Step 42: 28454 + 694 = 29148
Step 43: 29148 + 694 = 29842
Step 44: 29842 + 694 = 30536
Step 45: 30536 + 694 = 31230
Step 46: 31230 + 694 = 31924
Step 47: 31924 + 694 = 32618
Step 48: 32618 + 694 = 33312
Step 49: 33312 + 694 = 34006
Step 50: 34006 + 694 = 34700
Step 51: 34700 + 694 = 35394
Step 52: 35394 + 694 = 36088
Step 53: 36088 + 694 = 36782
Step 54: 36782 + 694 = 37476
Step 55: 37476 + 694 = 38170
Step 56: 38170 + 694 = 38864
Step 57: 38864 + 694 = 39558
Step 58: 39558 + 694 = 40252
Step 59: 40252 + 694 = 40946
Step 60: 40946 + 694 = 41640
Step 61: 41640 + 694 = 42334
Step 62: 42334 + 694 = 43028
Step 63: 43028 + 694 = 43722
Step 64: 43722 + 694 = 44416
Step 65: 44416 + 694 = 45110
Step 66: 45110 + 694 = 45804
Step 67: 45804 + 694 = 46498
Step 68: 46498 + 694 = 47192
Step 69: 47192 + 694 = 47886
Step 70: 47886 + 694 = 48580
Step 71: 48580 + 694 = 49274
Step 72: 49274 + 694 = 49968
Step 73: 49968 + 694 = 50662
Step 74: 50662 + 694 = 51356
Step 75: 51356 + 694 = 52050
Step 76: 52050 + 694 = 52744
Step 77: 52744 + 694 = 53438
Step 78: 53438 + 694 = 54132
Step 79: 54132 + 694 = 54826
Step 80: 54826 + 694 = 55520
Step 81: 55520 + 694 = 56214
Step 82: 56214 + 694 = 56908
Step 83: 56908 + 694 = 57602
Step 84: 57602 + 694 = 58296
Step 85: 58296 + 694 = 58990
Step 86: 58990 + 694 = 59684
Step 87: 59684 + 694 = 60378
Step 88: 60378 + 694 = 61072
Step 89: 61072 + 694 = 61766
Step 90: 61766 + 694 = 62460
Step 91: 62460 + 694 = 63154
Step 92: 63154 + 694 = 63848
Step 93: 63848 + 694 = 64542
Step 94: 64542 + 694 = 65236
Step 95: 65236 + 694 = 65930
Step 96: 65930 + 694 = 66624
Step 97: 66624 + 694 = 67318
Step 98: 67318 + 694 = 68012
Step 99: 68012 + 694 = 68706
Step 100: 68706 + 694 = 69400
Step 101: 69400 + 694 = 70094
Step 102: 70094 + 694 = 70788
Step 103: 70788 + 694 = 71482
Step 104: 71482 + 694 = 72176
Step 105: 72176 + 694 = 72870
Step 106: 72870 + 694 = 73564
Step 107: 73564 + 694 = 74258
Step 108: 74258 + 694 = 74952
Step 109: 74952 + 694 = 75646
Step 110: 75646 + 694 = 76340
Step 111: 76340 + 694 = 77034
Step 112: 77034 + 694 = 77728
Step 113: 77728 + 694 = 78422
Step 114: 78422 + 694 = 79116
Step 115: 79116 + 694 = 79810
Step 116: 79810 + 694 = 80504
Step 117: 80504 + 694 = 81198
Step 118: 81198 + 694 = 81892
Step 119: 81892 + 694 = 82586
Step 120: 82586 + 694 = 83280
Step 121: 83280 + 694 = 83974
Step 122: 83974 + 694 = 84668
Step 123: 84668 + 694 = 85362
Step 124: 85362 + 694 = 86056
Step 125: 86056 + 694 = 86750
Step 126: 86750 + 694 = 87444
Step 127: 87444 + 694 = 88138
Step 128: 88138 + 694 = 88832
Step 129: 88832 + 694 = 89526
Step 130: 89526 + 694 = 90220
Step 131: 90220 + 694 = 90914
Step 132: 90914 + 694 = 91608
Step 133: 91608 + 694 = 92302
Step 134: 92302 + 694 = 92996
Step 135: 92996 + 694 = 93690
Step 136: 93690 + 694 = 94384
Step 137: 94384 + 694 = 95078
Step 138: 95078 + 694 = 95772
Step 139: 95772 + 694 = 96466
Step 140: 96466 + 694 = 97160
Step 141: 97160 + 694 = 97854
Step 142: 97854 + 694 = 98548
Step 143: 98548 + 694 = 99242
Step 144: 99242 + 694 = 99936
Step 145: 99936 + 694 = 100630
Step 146: 100630 + 694 = 101324
Step 147: 101324 + 694 = 102018
Step 148: 102018 + 694 = 102712
Step 149: 102712 + 694 = 103406
Step 150: 103406 + 694 = 104100
Step 151: 104100 + 694 = 104794
Step 152: 104794 + 694 = 105488
Step 153: 105488 + 694 = 106182
Step 154: 106182 + 694 = 106876
Step 155: 106876 + 694 = 107570
Step 156: 107570 + 694 = 108264
Step 157: 108264 + 694 = 108958
Step 158: 108958 + 694 = 109652
Step 159: 109652 + 694 = 110346
Step 160: 110346 + 694 = 111040
Step 161: 111040 + 694 = 111734
Step 162: 111734 + 694 = 112428
Step 163: 112428 + 694 = 113122
Step 164: 113122 + 694 = 113816
Step 165: 113816 + 694 = 114510
Step 166: 114510 + 694 = 115204
Step 167: 115204 + 694 = 115898
Step 168: 115898 + 694 = 116592
Step 169: 116592 + 694 = 117286
Step 170: 117286 + 694 = 117980
Step 171: 117980 + 694 = 118674
Step 172: 118674 + 694 = 119368
Step 173: 119368 + 694 = 120062
Step 174: 120062 + 694 = 120756
Step 175: 120756 + 694 = 121450
Step 176: 121450 + 694 = 122144
Step 177: 122144 + 694 = 122838
Step 178: 122838 + 694 = 123532
Step 179: 123532 + 694 = 124226
Step 180: 124226 + 694 = 124920
Step 181: 124920 + 694 = 125614
Step 182: 125614 + 694 = 126308
Step 183: 126308 + 694 = 127002
Step 184: 127002 + 694 = 127696
Step 185: 127696 + 694 = 128390
Step 186: 128390 + 694 = 129084
Step 187: 129084 + 694 = 129778
Step 188: 129778 + 694 = 130472
Step 189: 130472 + 694 = 131166
Step 190: 131166 + 694 = 131860
Step 191: 131860 + 694 = 132554
Step 192: 132554 + 694 = 133248
Step 193: 133248 + 694 = 133942
Step 194: 133942 + 694 = 134636
Step 195: 134636 + 694 = 135330
Step 196: 135330 + 694 = 136024
Step 197: 136024 + 694 = 136718
Step 198: 136718 + 694 = 137412
Step 199: 137412 + 694 = 138106
Step 200: 138106 + 694 = 138800
Step 201: 138800 + 694 = 139494
Step 202: 139494 + 694 = 140188
Step 203: 140188 + 694 = 140882
Step 204: 140882 + 694 = 141576
Step 205: 141576 + 694 = 142270
Step 206: 142270 + 694 = 142964
Step 207: 142964 + 694 = 143658
Step 208: 143658 + 694 = 144352
Step 209: 144352 + 694 = 145046
Step 210: 145046 + 694 = 145740
Step 211: 145740 + 694 = 146434
Step 212: 146434 + 694 = 147128
Step 213: 147128 + 694 = 147822
Step 214: 147822 + 694 = 148516
Step 215: 148516 + 694 = 149210
Step 216: 149210 + 694 = 149904
Step 217: 149904 + 694 = 150598
Step 218: 150598 + 694 = 151292
Step 219: 151292 + 694 = 151986
Step 220: 151986 + 694 = 152680
Step 221: 152680 + 694 = 153374
Step 222: 153374 + 694 = 154068
Step 223: 154068 + 694 = 154762
Step 224: 154762 + 694 = 155456
Step 225: 155456 + 694 = 156150
Step 226: 156150 + 694 = 156844
Step 227: 156844 + 694 = 157538
Step 228: 157538 + 694 = 158232
Step 229: 158232 + 694 = 158926
Step 230: 158926 + 694 = 159620
Step 231: 159620 + 694 = 160314
Step 232: 160314 + 694 = 161008
Step 233: 161008 + 694 = 161702
Step 234: 161702 + 694 = 162396
Step 235: 162396 + 694 = 163090
Step 236: 163090 + 694 = 163784
Step 237: 163784 + 694 = 164478
Step 238: 164478 + 694 = 165172
Step 239: 165172 + 694 = 165866
Step 240: 165866 + 694 = 166560
Step 241: 166560 + 694 = 167254
Step 242: 167254 + 694 = 167948
Step 243: 167948 + 694 = 168642
Step 244: 168642 + 694 = 169336
Step 245: 169336 + 694 = 170030
Step 246: 170030 + 694 = 170724
Step 247: 170724 + 694 = 171418
Step 248: 171418 + 694 = 172112
Step 249: 172112 + 694 = 172806
Step 250: 172806 + 694 = 173500
Step 251: 173500 + 694 = 174194
Step 252: 174194 + 694 = 174888
Step 253: 174888 + 694 = 175582
Step 254: 175582 + 694 = 176276
Step 255: 176276 + 694 = 176970

So, 694*255 = 176970