Alright, let's solve this math problem step by step. First, we have the number 750. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 172. So, we're going to take the number 750 and add it to itself 172 times.
Step 1: 0 + 750 = 750
Step 2: 750 + 750 = 1500
Step 3: 1500 + 750 = 2250
Step 4: 2250 + 750 = 3000
Step 5: 3000 + 750 = 3750
Step 6: 3750 + 750 = 4500
Step 7: 4500 + 750 = 5250
Step 8: 5250 + 750 = 6000
Step 9: 6000 + 750 = 6750
Step 10: 6750 + 750 = 7500
Step 11: 7500 + 750 = 8250
Step 12: 8250 + 750 = 9000
Step 13: 9000 + 750 = 9750
Step 14: 9750 + 750 = 10500
Step 15: 10500 + 750 = 11250
Step 16: 11250 + 750 = 12000
Step 17: 12000 + 750 = 12750
Step 18: 12750 + 750 = 13500
Step 19: 13500 + 750 = 14250
Step 20: 14250 + 750 = 15000
Step 21: 15000 + 750 = 15750
Step 22: 15750 + 750 = 16500
Step 23: 16500 + 750 = 17250
Step 24: 17250 + 750 = 18000
Step 25: 18000 + 750 = 18750
Step 26: 18750 + 750 = 19500
Step 27: 19500 + 750 = 20250
Step 28: 20250 + 750 = 21000
Step 29: 21000 + 750 = 21750
Step 30: 21750 + 750 = 22500
Step 31: 22500 + 750 = 23250
Step 32: 23250 + 750 = 24000
Step 33: 24000 + 750 = 24750
Step 34: 24750 + 750 = 25500
Step 35: 25500 + 750 = 26250
Step 36: 26250 + 750 = 27000
Step 37: 27000 + 750 = 27750
Step 38: 27750 + 750 = 28500
Step 39: 28500 + 750 = 29250
Step 40: 29250 + 750 = 30000
Step 41: 30000 + 750 = 30750
Step 42: 30750 + 750 = 31500
Step 43: 31500 + 750 = 32250
Step 44: 32250 + 750 = 33000
Step 45: 33000 + 750 = 33750
Step 46: 33750 + 750 = 34500
Step 47: 34500 + 750 = 35250
Step 48: 35250 + 750 = 36000
Step 49: 36000 + 750 = 36750
Step 50: 36750 + 750 = 37500
Step 51: 37500 + 750 = 38250
Step 52: 38250 + 750 = 39000
Step 53: 39000 + 750 = 39750
Step 54: 39750 + 750 = 40500
Step 55: 40500 + 750 = 41250
Step 56: 41250 + 750 = 42000
Step 57: 42000 + 750 = 42750
Step 58: 42750 + 750 = 43500
Step 59: 43500 + 750 = 44250
Step 60: 44250 + 750 = 45000
Step 61: 45000 + 750 = 45750
Step 62: 45750 + 750 = 46500
Step 63: 46500 + 750 = 47250
Step 64: 47250 + 750 = 48000
Step 65: 48000 + 750 = 48750
Step 66: 48750 + 750 = 49500
Step 67: 49500 + 750 = 50250
Step 68: 50250 + 750 = 51000
Step 69: 51000 + 750 = 51750
Step 70: 51750 + 750 = 52500
Step 71: 52500 + 750 = 53250
Step 72: 53250 + 750 = 54000
Step 73: 54000 + 750 = 54750
Step 74: 54750 + 750 = 55500
Step 75: 55500 + 750 = 56250
Step 76: 56250 + 750 = 57000
Step 77: 57000 + 750 = 57750
Step 78: 57750 + 750 = 58500
Step 79: 58500 + 750 = 59250
Step 80: 59250 + 750 = 60000
Step 81: 60000 + 750 = 60750
Step 82: 60750 + 750 = 61500
Step 83: 61500 + 750 = 62250
Step 84: 62250 + 750 = 63000
Step 85: 63000 + 750 = 63750
Step 86: 63750 + 750 = 64500
Step 87: 64500 + 750 = 65250
Step 88: 65250 + 750 = 66000
Step 89: 66000 + 750 = 66750
Step 90: 66750 + 750 = 67500
Step 91: 67500 + 750 = 68250
Step 92: 68250 + 750 = 69000
Step 93: 69000 + 750 = 69750
Step 94: 69750 + 750 = 70500
Step 95: 70500 + 750 = 71250
Step 96: 71250 + 750 = 72000
Step 97: 72000 + 750 = 72750
Step 98: 72750 + 750 = 73500
Step 99: 73500 + 750 = 74250
Step 100: 74250 + 750 = 75000
Step 101: 75000 + 750 = 75750
Step 102: 75750 + 750 = 76500
Step 103: 76500 + 750 = 77250
Step 104: 77250 + 750 = 78000
Step 105: 78000 + 750 = 78750
Step 106: 78750 + 750 = 79500
Step 107: 79500 + 750 = 80250
Step 108: 80250 + 750 = 81000
Step 109: 81000 + 750 = 81750
Step 110: 81750 + 750 = 82500
Step 111: 82500 + 750 = 83250
Step 112: 83250 + 750 = 84000
Step 113: 84000 + 750 = 84750
Step 114: 84750 + 750 = 85500
Step 115: 85500 + 750 = 86250
Step 116: 86250 + 750 = 87000
Step 117: 87000 + 750 = 87750
Step 118: 87750 + 750 = 88500
Step 119: 88500 + 750 = 89250
Step 120: 89250 + 750 = 90000
Step 121: 90000 + 750 = 90750
Step 122: 90750 + 750 = 91500
Step 123: 91500 + 750 = 92250
Step 124: 92250 + 750 = 93000
Step 125: 93000 + 750 = 93750
Step 126: 93750 + 750 = 94500
Step 127: 94500 + 750 = 95250
Step 128: 95250 + 750 = 96000
Step 129: 96000 + 750 = 96750
Step 130: 96750 + 750 = 97500
Step 131: 97500 + 750 = 98250
Step 132: 98250 + 750 = 99000
Step 133: 99000 + 750 = 99750
Step 134: 99750 + 750 = 100500
Step 135: 100500 + 750 = 101250
Step 136: 101250 + 750 = 102000
Step 137: 102000 + 750 = 102750
Step 138: 102750 + 750 = 103500
Step 139: 103500 + 750 = 104250
Step 140: 104250 + 750 = 105000
Step 141: 105000 + 750 = 105750
Step 142: 105750 + 750 = 106500
Step 143: 106500 + 750 = 107250
Step 144: 107250 + 750 = 108000
Step 145: 108000 + 750 = 108750
Step 146: 108750 + 750 = 109500
Step 147: 109500 + 750 = 110250
Step 148: 110250 + 750 = 111000
Step 149: 111000 + 750 = 111750
Step 150: 111750 + 750 = 112500
Step 151: 112500 + 750 = 113250
Step 152: 113250 + 750 = 114000
Step 153: 114000 + 750 = 114750
Step 154: 114750 + 750 = 115500
Step 155: 115500 + 750 = 116250
Step 156: 116250 + 750 = 117000
Step 157: 117000 + 750 = 117750
Step 158: 117750 + 750 = 118500
Step 159: 118500 + 750 = 119250
Step 160: 119250 + 750 = 120000
Step 161: 120000 + 750 = 120750
Step 162: 120750 + 750 = 121500
Step 163: 121500 + 750 = 122250
Step 164: 122250 + 750 = 123000
Step 165: 123000 + 750 = 123750
Step 166: 123750 + 750 = 124500
Step 167: 124500 + 750 = 125250
Step 168: 125250 + 750 = 126000
Step 169: 126000 + 750 = 126750
Step 170: 126750 + 750 = 127500
Step 171: 127500 + 750 = 128250
Step 172: 128250 + 750 = 129000

So, 750*172 = 129000