Alright, let's solve this math problem step by step. First, we have the number 688. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 164. So, we're going to take the number 688 and add it to itself 164 times.
Step 1: 0 + 688 = 688
Step 2: 688 + 688 = 1376
Step 3: 1376 + 688 = 2064
Step 4: 2064 + 688 = 2752
Step 5: 2752 + 688 = 3440
Step 6: 3440 + 688 = 4128
Step 7: 4128 + 688 = 4816
Step 8: 4816 + 688 = 5504
Step 9: 5504 + 688 = 6192
Step 10: 6192 + 688 = 6880
Step 11: 6880 + 688 = 7568
Step 12: 7568 + 688 = 8256
Step 13: 8256 + 688 = 8944
Step 14: 8944 + 688 = 9632
Step 15: 9632 + 688 = 10320
Step 16: 10320 + 688 = 11008
Step 17: 11008 + 688 = 11696
Step 18: 11696 + 688 = 12384
Step 19: 12384 + 688 = 13072
Step 20: 13072 + 688 = 13760
Step 21: 13760 + 688 = 14448
Step 22: 14448 + 688 = 15136
Step 23: 15136 + 688 = 15824
Step 24: 15824 + 688 = 16512
Step 25: 16512 + 688 = 17200
Step 26: 17200 + 688 = 17888
Step 27: 17888 + 688 = 18576
Step 28: 18576 + 688 = 19264
Step 29: 19264 + 688 = 19952
Step 30: 19952 + 688 = 20640
Step 31: 20640 + 688 = 21328
Step 32: 21328 + 688 = 22016
Step 33: 22016 + 688 = 22704
Step 34: 22704 + 688 = 23392
Step 35: 23392 + 688 = 24080
Step 36: 24080 + 688 = 24768
Step 37: 24768 + 688 = 25456
Step 38: 25456 + 688 = 26144
Step 39: 26144 + 688 = 26832
Step 40: 26832 + 688 = 27520
Step 41: 27520 + 688 = 28208
Step 42: 28208 + 688 = 28896
Step 43: 28896 + 688 = 29584
Step 44: 29584 + 688 = 30272
Step 45: 30272 + 688 = 30960
Step 46: 30960 + 688 = 31648
Step 47: 31648 + 688 = 32336
Step 48: 32336 + 688 = 33024
Step 49: 33024 + 688 = 33712
Step 50: 33712 + 688 = 34400
Step 51: 34400 + 688 = 35088
Step 52: 35088 + 688 = 35776
Step 53: 35776 + 688 = 36464
Step 54: 36464 + 688 = 37152
Step 55: 37152 + 688 = 37840
Step 56: 37840 + 688 = 38528
Step 57: 38528 + 688 = 39216
Step 58: 39216 + 688 = 39904
Step 59: 39904 + 688 = 40592
Step 60: 40592 + 688 = 41280
Step 61: 41280 + 688 = 41968
Step 62: 41968 + 688 = 42656
Step 63: 42656 + 688 = 43344
Step 64: 43344 + 688 = 44032
Step 65: 44032 + 688 = 44720
Step 66: 44720 + 688 = 45408
Step 67: 45408 + 688 = 46096
Step 68: 46096 + 688 = 46784
Step 69: 46784 + 688 = 47472
Step 70: 47472 + 688 = 48160
Step 71: 48160 + 688 = 48848
Step 72: 48848 + 688 = 49536
Step 73: 49536 + 688 = 50224
Step 74: 50224 + 688 = 50912
Step 75: 50912 + 688 = 51600
Step 76: 51600 + 688 = 52288
Step 77: 52288 + 688 = 52976
Step 78: 52976 + 688 = 53664
Step 79: 53664 + 688 = 54352
Step 80: 54352 + 688 = 55040
Step 81: 55040 + 688 = 55728
Step 82: 55728 + 688 = 56416
Step 83: 56416 + 688 = 57104
Step 84: 57104 + 688 = 57792
Step 85: 57792 + 688 = 58480
Step 86: 58480 + 688 = 59168
Step 87: 59168 + 688 = 59856
Step 88: 59856 + 688 = 60544
Step 89: 60544 + 688 = 61232
Step 90: 61232 + 688 = 61920
Step 91: 61920 + 688 = 62608
Step 92: 62608 + 688 = 63296
Step 93: 63296 + 688 = 63984
Step 94: 63984 + 688 = 64672
Step 95: 64672 + 688 = 65360
Step 96: 65360 + 688 = 66048
Step 97: 66048 + 688 = 66736
Step 98: 66736 + 688 = 67424
Step 99: 67424 + 688 = 68112
Step 100: 68112 + 688 = 68800
Step 101: 68800 + 688 = 69488
Step 102: 69488 + 688 = 70176
Step 103: 70176 + 688 = 70864
Step 104: 70864 + 688 = 71552
Step 105: 71552 + 688 = 72240
Step 106: 72240 + 688 = 72928
Step 107: 72928 + 688 = 73616
Step 108: 73616 + 688 = 74304
Step 109: 74304 + 688 = 74992
Step 110: 74992 + 688 = 75680
Step 111: 75680 + 688 = 76368
Step 112: 76368 + 688 = 77056
Step 113: 77056 + 688 = 77744
Step 114: 77744 + 688 = 78432
Step 115: 78432 + 688 = 79120
Step 116: 79120 + 688 = 79808
Step 117: 79808 + 688 = 80496
Step 118: 80496 + 688 = 81184
Step 119: 81184 + 688 = 81872
Step 120: 81872 + 688 = 82560
Step 121: 82560 + 688 = 83248
Step 122: 83248 + 688 = 83936
Step 123: 83936 + 688 = 84624
Step 124: 84624 + 688 = 85312
Step 125: 85312 + 688 = 86000
Step 126: 86000 + 688 = 86688
Step 127: 86688 + 688 = 87376
Step 128: 87376 + 688 = 88064
Step 129: 88064 + 688 = 88752
Step 130: 88752 + 688 = 89440
Step 131: 89440 + 688 = 90128
Step 132: 90128 + 688 = 90816
Step 133: 90816 + 688 = 91504
Step 134: 91504 + 688 = 92192
Step 135: 92192 + 688 = 92880
Step 136: 92880 + 688 = 93568
Step 137: 93568 + 688 = 94256
Step 138: 94256 + 688 = 94944
Step 139: 94944 + 688 = 95632
Step 140: 95632 + 688 = 96320
Step 141: 96320 + 688 = 97008
Step 142: 97008 + 688 = 97696
Step 143: 97696 + 688 = 98384
Step 144: 98384 + 688 = 99072
Step 145: 99072 + 688 = 99760
Step 146: 99760 + 688 = 100448
Step 147: 100448 + 688 = 101136
Step 148: 101136 + 688 = 101824
Step 149: 101824 + 688 = 102512
Step 150: 102512 + 688 = 103200
Step 151: 103200 + 688 = 103888
Step 152: 103888 + 688 = 104576
Step 153: 104576 + 688 = 105264
Step 154: 105264 + 688 = 105952
Step 155: 105952 + 688 = 106640
Step 156: 106640 + 688 = 107328
Step 157: 107328 + 688 = 108016
Step 158: 108016 + 688 = 108704
Step 159: 108704 + 688 = 109392
Step 160: 109392 + 688 = 110080
Step 161: 110080 + 688 = 110768
Step 162: 110768 + 688 = 111456
Step 163: 111456 + 688 = 112144
Step 164: 112144 + 688 = 112832

So, 688*164 = 112832