OK, let's work through this together. We're starting with 450 and we're going to multiply it by 253, which means we add 450 to itself 253 times.
Step 1: 0 + 450 = 450
Step 2: 450 + 450 = 900
Step 3: 900 + 450 = 1350
Step 4: 1350 + 450 = 1800
Step 5: 1800 + 450 = 2250
Step 6: 2250 + 450 = 2700
Step 7: 2700 + 450 = 3150
Step 8: 3150 + 450 = 3600
Step 9: 3600 + 450 = 4050
Step 10: 4050 + 450 = 4500
Step 11: 4500 + 450 = 4950
Step 12: 4950 + 450 = 5400
Step 13: 5400 + 450 = 5850
Step 14: 5850 + 450 = 6300
Step 15: 6300 + 450 = 6750
Step 16: 6750 + 450 = 7200
Step 17: 7200 + 450 = 7650
Step 18: 7650 + 450 = 8100
Step 19: 8100 + 450 = 8550
Step 20: 8550 + 450 = 9000
Step 21: 9000 + 450 = 9450
Step 22: 9450 + 450 = 9900
Step 23: 9900 + 450 = 10350
Step 24: 10350 + 450 = 10800
Step 25: 10800 + 450 = 11250
Step 26: 11250 + 450 = 11700
Step 27: 11700 + 450 = 12150
Step 28: 12150 + 450 = 12600
Step 29: 12600 + 450 = 13050
Step 30: 13050 + 450 = 13500
Step 31: 13500 + 450 = 13950
Step 32: 13950 + 450 = 14400
Step 33: 14400 + 450 = 14850
Step 34: 14850 + 450 = 15300
Step 35: 15300 + 450 = 15750
Step 36: 15750 + 450 = 16200
Step 37: 16200 + 450 = 16650
Step 38: 16650 + 450 = 17100
Step 39: 17100 + 450 = 17550
Step 40: 17550 + 450 = 18000
Step 41: 18000 + 450 = 18450
Step 42: 18450 + 450 = 18900
Step 43: 18900 + 450 = 19350
Step 44: 19350 + 450 = 19800
Step 45: 19800 + 450 = 20250
Step 46: 20250 + 450 = 20700
Step 47: 20700 + 450 = 21150
Step 48: 21150 + 450 = 21600
Step 49: 21600 + 450 = 22050
Step 50: 22050 + 450 = 22500
Step 51: 22500 + 450 = 22950
Step 52: 22950 + 450 = 23400
Step 53: 23400 + 450 = 23850
Step 54: 23850 + 450 = 24300
Step 55: 24300 + 450 = 24750
Step 56: 24750 + 450 = 25200
Step 57: 25200 + 450 = 25650
Step 58: 25650 + 450 = 26100
Step 59: 26100 + 450 = 26550
Step 60: 26550 + 450 = 27000
Step 61: 27000 + 450 = 27450
Step 62: 27450 + 450 = 27900
Step 63: 27900 + 450 = 28350
Step 64: 28350 + 450 = 28800
Step 65: 28800 + 450 = 29250
Step 66: 29250 + 450 = 29700
Step 67: 29700 + 450 = 30150
Step 68: 30150 + 450 = 30600
Step 69: 30600 + 450 = 31050
Step 70: 31050 + 450 = 31500
Step 71: 31500 + 450 = 31950
Step 72: 31950 + 450 = 32400
Step 73: 32400 + 450 = 32850
Step 74: 32850 + 450 = 33300
Step 75: 33300 + 450 = 33750
Step 76: 33750 + 450 = 34200
Step 77: 34200 + 450 = 34650
Step 78: 34650 + 450 = 35100
Step 79: 35100 + 450 = 35550
Step 80: 35550 + 450 = 36000
Step 81: 36000 + 450 = 36450
Step 82: 36450 + 450 = 36900
Step 83: 36900 + 450 = 37350
Step 84: 37350 + 450 = 37800
Step 85: 37800 + 450 = 38250
Step 86: 38250 + 450 = 38700
Step 87: 38700 + 450 = 39150
Step 88: 39150 + 450 = 39600
Step 89: 39600 + 450 = 40050
Step 90: 40050 + 450 = 40500
Step 91: 40500 + 450 = 40950
Step 92: 40950 + 450 = 41400
Step 93: 41400 + 450 = 41850
Step 94: 41850 + 450 = 42300
Step 95: 42300 + 450 = 42750
Step 96: 42750 + 450 = 43200
Step 97: 43200 + 450 = 43650
Step 98: 43650 + 450 = 44100
Step 99: 44100 + 450 = 44550
Step 100: 44550 + 450 = 45000
Step 101: 45000 + 450 = 45450
Step 102: 45450 + 450 = 45900
Step 103: 45900 + 450 = 46350
Step 104: 46350 + 450 = 46800
Step 105: 46800 + 450 = 47250
Step 106: 47250 + 450 = 47700
Step 107: 47700 + 450 = 48150
Step 108: 48150 + 450 = 48600
Step 109: 48600 + 450 = 49050
Step 110: 49050 + 450 = 49500
Step 111: 49500 + 450 = 49950
Step 112: 49950 + 450 = 50400
Step 113: 50400 + 450 = 50850
Step 114: 50850 + 450 = 51300
Step 115: 51300 + 450 = 51750
Step 116: 51750 + 450 = 52200
Step 117: 52200 + 450 = 52650
Step 118: 52650 + 450 = 53100
Step 119: 53100 + 450 = 53550
Step 120: 53550 + 450 = 54000
Step 121: 54000 + 450 = 54450
Step 122: 54450 + 450 = 54900
Step 123: 54900 + 450 = 55350
Step 124: 55350 + 450 = 55800
Step 125: 55800 + 450 = 56250
Step 126: 56250 + 450 = 56700
Step 127: 56700 + 450 = 57150
Step 128: 57150 + 450 = 57600
Step 129: 57600 + 450 = 58050
Step 130: 58050 + 450 = 58500
Step 131: 58500 + 450 = 58950
Step 132: 58950 + 450 = 59400
Step 133: 59400 + 450 = 59850
Step 134: 59850 + 450 = 60300
Step 135: 60300 + 450 = 60750
Step 136: 60750 + 450 = 61200
Step 137: 61200 + 450 = 61650
Step 138: 61650 + 450 = 62100
Step 139: 62100 + 450 = 62550
Step 140: 62550 + 450 = 63000
Step 141: 63000 + 450 = 63450
Step 142: 63450 + 450 = 63900
Step 143: 63900 + 450 = 64350
Step 144: 64350 + 450 = 64800
Step 145: 64800 + 450 = 65250
Step 146: 65250 + 450 = 65700
Step 147: 65700 + 450 = 66150
Step 148: 66150 + 450 = 66600
Step 149: 66600 + 450 = 67050
Step 150: 67050 + 450 = 67500
Step 151: 67500 + 450 = 67950
Step 152: 67950 + 450 = 68400
Step 153: 68400 + 450 = 68850
Step 154: 68850 + 450 = 69300
Step 155: 69300 + 450 = 69750
Step 156: 69750 + 450 = 70200
Step 157: 70200 + 450 = 70650
Step 158: 70650 + 450 = 71100
Step 159: 71100 + 450 = 71550
Step 160: 71550 + 450 = 72000
Step 161: 72000 + 450 = 72450
Step 162: 72450 + 450 = 72900
Step 163: 72900 + 450 = 73350
Step 164: 73350 + 450 = 73800
Step 165: 73800 + 450 = 74250
Step 166: 74250 + 450 = 74700
Step 167: 74700 + 450 = 75150
Step 168: 75150 + 450 = 75600
Step 169: 75600 + 450 = 76050
Step 170: 76050 + 450 = 76500
Step 171: 76500 + 450 = 76950
Step 172: 76950 + 450 = 77400
Step 173: 77400 + 450 = 77850
Step 174: 77850 + 450 = 78300
Step 175: 78300 + 450 = 78750
Step 176: 78750 + 450 = 79200
Step 177: 79200 + 450 = 79650
Step 178: 79650 + 450 = 80100
Step 179: 80100 + 450 = 80550
Step 180: 80550 + 450 = 81000
Step 181: 81000 + 450 = 81450
Step 182: 81450 + 450 = 81900
Step 183: 81900 + 450 = 82350
Step 184: 82350 + 450 = 82800
Step 185: 82800 + 450 = 83250
Step 186: 83250 + 450 = 83700
Step 187: 83700 + 450 = 84150
Step 188: 84150 + 450 = 84600
Step 189: 84600 + 450 = 85050
Step 190: 85050 + 450 = 85500
Step 191: 85500 + 450 = 85950
Step 192: 85950 + 450 = 86400
Step 193: 86400 + 450 = 86850
Step 194: 86850 + 450 = 87300
Step 195: 87300 + 450 = 87750
Step 196: 87750 + 450 = 88200
Step 197: 88200 + 450 = 88650
Step 198: 88650 + 450 = 89100
Step 199: 89100 + 450 = 89550
Step 200: 89550 + 450 = 90000
Step 201: 90000 + 450 = 90450
Step 202: 90450 + 450 = 90900
Step 203: 90900 + 450 = 91350
Step 204: 91350 + 450 = 91800
Step 205: 91800 + 450 = 92250
Step 206: 92250 + 450 = 92700
Step 207: 92700 + 450 = 93150
Step 208: 93150 + 450 = 93600
Step 209: 93600 + 450 = 94050
Step 210: 94050 + 450 = 94500
Step 211: 94500 + 450 = 94950
Step 212: 94950 + 450 = 95400
Step 213: 95400 + 450 = 95850
Step 214: 95850 + 450 = 96300
Step 215: 96300 + 450 = 96750
Step 216: 96750 + 450 = 97200
Step 217: 97200 + 450 = 97650
Step 218: 97650 + 450 = 98100
Step 219: 98100 + 450 = 98550
Step 220: 98550 + 450 = 99000
Step 221: 99000 + 450 = 99450
Step 222: 99450 + 450 = 99900
Step 223: 99900 + 450 = 100350
Step 224: 100350 + 450 = 100800
Step 225: 100800 + 450 = 101250
Step 226: 101250 + 450 = 101700
Step 227: 101700 + 450 = 102150
Step 228: 102150 + 450 = 102600
Step 229: 102600 + 450 = 103050
Step 230: 103050 + 450 = 103500
Step 231: 103500 + 450 = 103950
Step 232: 103950 + 450 = 104400
Step 233: 104400 + 450 = 104850
Step 234: 104850 + 450 = 105300
Step 235: 105300 + 450 = 105750
Step 236: 105750 + 450 = 106200
Step 237: 106200 + 450 = 106650
Step 238: 106650 + 450 = 107100
Step 239: 107100 + 450 = 107550
Step 240: 107550 + 450 = 108000
Step 241: 108000 + 450 = 108450
Step 242: 108450 + 450 = 108900
Step 243: 108900 + 450 = 109350
Step 244: 109350 + 450 = 109800
Step 245: 109800 + 450 = 110250
Step 246: 110250 + 450 = 110700
Step 247: 110700 + 450 = 111150
Step 248: 111150 + 450 = 111600
Step 249: 111600 + 450 = 112050
Step 250: 112050 + 450 = 112500
Step 251: 112500 + 450 = 112950
Step 252: 112950 + 450 = 113400
Step 253: 113400 + 450 = 113850

So, 450*253 = 113850