OK, let's crack this. We're given 550 and our task is to multiply it by 455. Essentially, we'll be adding 550 to itself 455 times.
Step 1: 0 + 550 = 550
Step 2: 550 + 550 = 1100
Step 3: 1100 + 550 = 1650
Step 4: 1650 + 550 = 2200
Step 5: 2200 + 550 = 2750
Step 6: 2750 + 550 = 3300
Step 7: 3300 + 550 = 3850
Step 8: 3850 + 550 = 4400
Step 9: 4400 + 550 = 4950
Step 10: 4950 + 550 = 5500
Step 11: 5500 + 550 = 6050
Step 12: 6050 + 550 = 6600
Step 13: 6600 + 550 = 7150
Step 14: 7150 + 550 = 7700
Step 15: 7700 + 550 = 8250
Step 16: 8250 + 550 = 8800
Step 17: 8800 + 550 = 9350
Step 18: 9350 + 550 = 9900
Step 19: 9900 + 550 = 10450
Step 20: 10450 + 550 = 11000
Step 21: 11000 + 550 = 11550
Step 22: 11550 + 550 = 12100
Step 23: 12100 + 550 = 12650
Step 24: 12650 + 550 = 13200
Step 25: 13200 + 550 = 13750
Step 26: 13750 + 550 = 14300
Step 27: 14300 + 550 = 14850
Step 28: 14850 + 550 = 15400
Step 29: 15400 + 550 = 15950
Step 30: 15950 + 550 = 16500
Step 31: 16500 + 550 = 17050
Step 32: 17050 + 550 = 17600
Step 33: 17600 + 550 = 18150
Step 34: 18150 + 550 = 18700
Step 35: 18700 + 550 = 19250
Step 36: 19250 + 550 = 19800
Step 37: 19800 + 550 = 20350
Step 38: 20350 + 550 = 20900
Step 39: 20900 + 550 = 21450
Step 40: 21450 + 550 = 22000
Step 41: 22000 + 550 = 22550
Step 42: 22550 + 550 = 23100
Step 43: 23100 + 550 = 23650
Step 44: 23650 + 550 = 24200
Step 45: 24200 + 550 = 24750
Step 46: 24750 + 550 = 25300
Step 47: 25300 + 550 = 25850
Step 48: 25850 + 550 = 26400
Step 49: 26400 + 550 = 26950
Step 50: 26950 + 550 = 27500
Step 51: 27500 + 550 = 28050
Step 52: 28050 + 550 = 28600
Step 53: 28600 + 550 = 29150
Step 54: 29150 + 550 = 29700
Step 55: 29700 + 550 = 30250
Step 56: 30250 + 550 = 30800
Step 57: 30800 + 550 = 31350
Step 58: 31350 + 550 = 31900
Step 59: 31900 + 550 = 32450
Step 60: 32450 + 550 = 33000
Step 61: 33000 + 550 = 33550
Step 62: 33550 + 550 = 34100
Step 63: 34100 + 550 = 34650
Step 64: 34650 + 550 = 35200
Step 65: 35200 + 550 = 35750
Step 66: 35750 + 550 = 36300
Step 67: 36300 + 550 = 36850
Step 68: 36850 + 550 = 37400
Step 69: 37400 + 550 = 37950
Step 70: 37950 + 550 = 38500
Step 71: 38500 + 550 = 39050
Step 72: 39050 + 550 = 39600
Step 73: 39600 + 550 = 40150
Step 74: 40150 + 550 = 40700
Step 75: 40700 + 550 = 41250
Step 76: 41250 + 550 = 41800
Step 77: 41800 + 550 = 42350
Step 78: 42350 + 550 = 42900
Step 79: 42900 + 550 = 43450
Step 80: 43450 + 550 = 44000
Step 81: 44000 + 550 = 44550
Step 82: 44550 + 550 = 45100
Step 83: 45100 + 550 = 45650
Step 84: 45650 + 550 = 46200
Step 85: 46200 + 550 = 46750
Step 86: 46750 + 550 = 47300
Step 87: 47300 + 550 = 47850
Step 88: 47850 + 550 = 48400
Step 89: 48400 + 550 = 48950
Step 90: 48950 + 550 = 49500
Step 91: 49500 + 550 = 50050
Step 92: 50050 + 550 = 50600
Step 93: 50600 + 550 = 51150
Step 94: 51150 + 550 = 51700
Step 95: 51700 + 550 = 52250
Step 96: 52250 + 550 = 52800
Step 97: 52800 + 550 = 53350
Step 98: 53350 + 550 = 53900
Step 99: 53900 + 550 = 54450
Step 100: 54450 + 550 = 55000
Step 101: 55000 + 550 = 55550
Step 102: 55550 + 550 = 56100
Step 103: 56100 + 550 = 56650
Step 104: 56650 + 550 = 57200
Step 105: 57200 + 550 = 57750
Step 106: 57750 + 550 = 58300
Step 107: 58300 + 550 = 58850
Step 108: 58850 + 550 = 59400
Step 109: 59400 + 550 = 59950
Step 110: 59950 + 550 = 60500
Step 111: 60500 + 550 = 61050
Step 112: 61050 + 550 = 61600
Step 113: 61600 + 550 = 62150
Step 114: 62150 + 550 = 62700
Step 115: 62700 + 550 = 63250
Step 116: 63250 + 550 = 63800
Step 117: 63800 + 550 = 64350
Step 118: 64350 + 550 = 64900
Step 119: 64900 + 550 = 65450
Step 120: 65450 + 550 = 66000
Step 121: 66000 + 550 = 66550
Step 122: 66550 + 550 = 67100
Step 123: 67100 + 550 = 67650
Step 124: 67650 + 550 = 68200
Step 125: 68200 + 550 = 68750
Step 126: 68750 + 550 = 69300
Step 127: 69300 + 550 = 69850
Step 128: 69850 + 550 = 70400
Step 129: 70400 + 550 = 70950
Step 130: 70950 + 550 = 71500
Step 131: 71500 + 550 = 72050
Step 132: 72050 + 550 = 72600
Step 133: 72600 + 550 = 73150
Step 134: 73150 + 550 = 73700
Step 135: 73700 + 550 = 74250
Step 136: 74250 + 550 = 74800
Step 137: 74800 + 550 = 75350
Step 138: 75350 + 550 = 75900
Step 139: 75900 + 550 = 76450
Step 140: 76450 + 550 = 77000
Step 141: 77000 + 550 = 77550
Step 142: 77550 + 550 = 78100
Step 143: 78100 + 550 = 78650
Step 144: 78650 + 550 = 79200
Step 145: 79200 + 550 = 79750
Step 146: 79750 + 550 = 80300
Step 147: 80300 + 550 = 80850
Step 148: 80850 + 550 = 81400
Step 149: 81400 + 550 = 81950
Step 150: 81950 + 550 = 82500
Step 151: 82500 + 550 = 83050
Step 152: 83050 + 550 = 83600
Step 153: 83600 + 550 = 84150
Step 154: 84150 + 550 = 84700
Step 155: 84700 + 550 = 85250
Step 156: 85250 + 550 = 85800
Step 157: 85800 + 550 = 86350
Step 158: 86350 + 550 = 86900
Step 159: 86900 + 550 = 87450
Step 160: 87450 + 550 = 88000
Step 161: 88000 + 550 = 88550
Step 162: 88550 + 550 = 89100
Step 163: 89100 + 550 = 89650
Step 164: 89650 + 550 = 90200
Step 165: 90200 + 550 = 90750
Step 166: 90750 + 550 = 91300
Step 167: 91300 + 550 = 91850
Step 168: 91850 + 550 = 92400
Step 169: 92400 + 550 = 92950
Step 170: 92950 + 550 = 93500
Step 171: 93500 + 550 = 94050
Step 172: 94050 + 550 = 94600
Step 173: 94600 + 550 = 95150
Step 174: 95150 + 550 = 95700
Step 175: 95700 + 550 = 96250
Step 176: 96250 + 550 = 96800
Step 177: 96800 + 550 = 97350
Step 178: 97350 + 550 = 97900
Step 179: 97900 + 550 = 98450
Step 180: 98450 + 550 = 99000
Step 181: 99000 + 550 = 99550
Step 182: 99550 + 550 = 100100
Step 183: 100100 + 550 = 100650
Step 184: 100650 + 550 = 101200
Step 185: 101200 + 550 = 101750
Step 186: 101750 + 550 = 102300
Step 187: 102300 + 550 = 102850
Step 188: 102850 + 550 = 103400
Step 189: 103400 + 550 = 103950
Step 190: 103950 + 550 = 104500
Step 191: 104500 + 550 = 105050
Step 192: 105050 + 550 = 105600
Step 193: 105600 + 550 = 106150
Step 194: 106150 + 550 = 106700
Step 195: 106700 + 550 = 107250
Step 196: 107250 + 550 = 107800
Step 197: 107800 + 550 = 108350
Step 198: 108350 + 550 = 108900
Step 199: 108900 + 550 = 109450
Step 200: 109450 + 550 = 110000
Step 201: 110000 + 550 = 110550
Step 202: 110550 + 550 = 111100
Step 203: 111100 + 550 = 111650
Step 204: 111650 + 550 = 112200
Step 205: 112200 + 550 = 112750
Step 206: 112750 + 550 = 113300
Step 207: 113300 + 550 = 113850
Step 208: 113850 + 550 = 114400
Step 209: 114400 + 550 = 114950
Step 210: 114950 + 550 = 115500
Step 211: 115500 + 550 = 116050
Step 212: 116050 + 550 = 116600
Step 213: 116600 + 550 = 117150
Step 214: 117150 + 550 = 117700
Step 215: 117700 + 550 = 118250
Step 216: 118250 + 550 = 118800
Step 217: 118800 + 550 = 119350
Step 218: 119350 + 550 = 119900
Step 219: 119900 + 550 = 120450
Step 220: 120450 + 550 = 121000
Step 221: 121000 + 550 = 121550
Step 222: 121550 + 550 = 122100
Step 223: 122100 + 550 = 122650
Step 224: 122650 + 550 = 123200
Step 225: 123200 + 550 = 123750
Step 226: 123750 + 550 = 124300
Step 227: 124300 + 550 = 124850
Step 228: 124850 + 550 = 125400
Step 229: 125400 + 550 = 125950
Step 230: 125950 + 550 = 126500
Step 231: 126500 + 550 = 127050
Step 232: 127050 + 550 = 127600
Step 233: 127600 + 550 = 128150
Step 234: 128150 + 550 = 128700
Step 235: 128700 + 550 = 129250
Step 236: 129250 + 550 = 129800
Step 237: 129800 + 550 = 130350
Step 238: 130350 + 550 = 130900
Step 239: 130900 + 550 = 131450
Step 240: 131450 + 550 = 132000
Step 241: 132000 + 550 = 132550
Step 242: 132550 + 550 = 133100
Step 243: 133100 + 550 = 133650
Step 244: 133650 + 550 = 134200
Step 245: 134200 + 550 = 134750
Step 246: 134750 + 550 = 135300
Step 247: 135300 + 550 = 135850
Step 248: 135850 + 550 = 136400
Step 249: 136400 + 550 = 136950
Step 250: 136950 + 550 = 137500
Step 251: 137500 + 550 = 138050
Step 252: 138050 + 550 = 138600
Step 253: 138600 + 550 = 139150
Step 254: 139150 + 550 = 139700
Step 255: 139700 + 550 = 140250
Step 256: 140250 + 550 = 140800
Step 257: 140800 + 550 = 141350
Step 258: 141350 + 550 = 141900
Step 259: 141900 + 550 = 142450
Step 260: 142450 + 550 = 143000
Step 261: 143000 + 550 = 143550
Step 262: 143550 + 550 = 144100
Step 263: 144100 + 550 = 144650
Step 264: 144650 + 550 = 145200
Step 265: 145200 + 550 = 145750
Step 266: 145750 + 550 = 146300
Step 267: 146300 + 550 = 146850
Step 268: 146850 + 550 = 147400
Step 269: 147400 + 550 = 147950
Step 270: 147950 + 550 = 148500
Step 271: 148500 + 550 = 149050
Step 272: 149050 + 550 = 149600
Step 273: 149600 + 550 = 150150
Step 274: 150150 + 550 = 150700
Step 275: 150700 + 550 = 151250
Step 276: 151250 + 550 = 151800
Step 277: 151800 + 550 = 152350
Step 278: 152350 + 550 = 152900
Step 279: 152900 + 550 = 153450
Step 280: 153450 + 550 = 154000
Step 281: 154000 + 550 = 154550
Step 282: 154550 + 550 = 155100
Step 283: 155100 + 550 = 155650
Step 284: 155650 + 550 = 156200
Step 285: 156200 + 550 = 156750
Step 286: 156750 + 550 = 157300
Step 287: 157300 + 550 = 157850
Step 288: 157850 + 550 = 158400
Step 289: 158400 + 550 = 158950
Step 290: 158950 + 550 = 159500
Step 291: 159500 + 550 = 160050
Step 292: 160050 + 550 = 160600
Step 293: 160600 + 550 = 161150
Step 294: 161150 + 550 = 161700
Step 295: 161700 + 550 = 162250
Step 296: 162250 + 550 = 162800
Step 297: 162800 + 550 = 163350
Step 298: 163350 + 550 = 163900
Step 299: 163900 + 550 = 164450
Step 300: 164450 + 550 = 165000
Step 301: 165000 + 550 = 165550
Step 302: 165550 + 550 = 166100
Step 303: 166100 + 550 = 166650
Step 304: 166650 + 550 = 167200
Step 305: 167200 + 550 = 167750
Step 306: 167750 + 550 = 168300
Step 307: 168300 + 550 = 168850
Step 308: 168850 + 550 = 169400
Step 309: 169400 + 550 = 169950
Step 310: 169950 + 550 = 170500
Step 311: 170500 + 550 = 171050
Step 312: 171050 + 550 = 171600
Step 313: 171600 + 550 = 172150
Step 314: 172150 + 550 = 172700
Step 315: 172700 + 550 = 173250
Step 316: 173250 + 550 = 173800
Step 317: 173800 + 550 = 174350
Step 318: 174350 + 550 = 174900
Step 319: 174900 + 550 = 175450
Step 320: 175450 + 550 = 176000
Step 321: 176000 + 550 = 176550
Step 322: 176550 + 550 = 177100
Step 323: 177100 + 550 = 177650
Step 324: 177650 + 550 = 178200
Step 325: 178200 + 550 = 178750
Step 326: 178750 + 550 = 179300
Step 327: 179300 + 550 = 179850
Step 328: 179850 + 550 = 180400
Step 329: 180400 + 550 = 180950
Step 330: 180950 + 550 = 181500
Step 331: 181500 + 550 = 182050
Step 332: 182050 + 550 = 182600
Step 333: 182600 + 550 = 183150
Step 334: 183150 + 550 = 183700
Step 335: 183700 + 550 = 184250
Step 336: 184250 + 550 = 184800
Step 337: 184800 + 550 = 185350
Step 338: 185350 + 550 = 185900
Step 339: 185900 + 550 = 186450
Step 340: 186450 + 550 = 187000
Step 341: 187000 + 550 = 187550
Step 342: 187550 + 550 = 188100
Step 343: 188100 + 550 = 188650
Step 344: 188650 + 550 = 189200
Step 345: 189200 + 550 = 189750
Step 346: 189750 + 550 = 190300
Step 347: 190300 + 550 = 190850
Step 348: 190850 + 550 = 191400
Step 349: 191400 + 550 = 191950
Step 350: 191950 + 550 = 192500
Step 351: 192500 + 550 = 193050
Step 352: 193050 + 550 = 193600
Step 353: 193600 + 550 = 194150
Step 354: 194150 + 550 = 194700
Step 355: 194700 + 550 = 195250
Step 356: 195250 + 550 = 195800
Step 357: 195800 + 550 = 196350
Step 358: 196350 + 550 = 196900
Step 359: 196900 + 550 = 197450
Step 360: 197450 + 550 = 198000
Step 361: 198000 + 550 = 198550
Step 362: 198550 + 550 = 199100
Step 363: 199100 + 550 = 199650
Step 364: 199650 + 550 = 200200
Step 365: 200200 + 550 = 200750
Step 366: 200750 + 550 = 201300
Step 367: 201300 + 550 = 201850
Step 368: 201850 + 550 = 202400
Step 369: 202400 + 550 = 202950
Step 370: 202950 + 550 = 203500
Step 371: 203500 + 550 = 204050
Step 372: 204050 + 550 = 204600
Step 373: 204600 + 550 = 205150
Step 374: 205150 + 550 = 205700
Step 375: 205700 + 550 = 206250
Step 376: 206250 + 550 = 206800
Step 377: 206800 + 550 = 207350
Step 378: 207350 + 550 = 207900
Step 379: 207900 + 550 = 208450
Step 380: 208450 + 550 = 209000
Step 381: 209000 + 550 = 209550
Step 382: 209550 + 550 = 210100
Step 383: 210100 + 550 = 210650
Step 384: 210650 + 550 = 211200
Step 385: 211200 + 550 = 211750
Step 386: 211750 + 550 = 212300
Step 387: 212300 + 550 = 212850
Step 388: 212850 + 550 = 213400
Step 389: 213400 + 550 = 213950
Step 390: 213950 + 550 = 214500
Step 391: 214500 + 550 = 215050
Step 392: 215050 + 550 = 215600
Step 393: 215600 + 550 = 216150
Step 394: 216150 + 550 = 216700
Step 395: 216700 + 550 = 217250
Step 396: 217250 + 550 = 217800
Step 397: 217800 + 550 = 218350
Step 398: 218350 + 550 = 218900
Step 399: 218900 + 550 = 219450
Step 400: 219450 + 550 = 220000
Step 401: 220000 + 550 = 220550
Step 402: 220550 + 550 = 221100
Step 403: 221100 + 550 = 221650
Step 404: 221650 + 550 = 222200
Step 405: 222200 + 550 = 222750
Step 406: 222750 + 550 = 223300
Step 407: 223300 + 550 = 223850
Step 408: 223850 + 550 = 224400
Step 409: 224400 + 550 = 224950
Step 410: 224950 + 550 = 225500
Step 411: 225500 + 550 = 226050
Step 412: 226050 + 550 = 226600
Step 413: 226600 + 550 = 227150
Step 414: 227150 + 550 = 227700
Step 415: 227700 + 550 = 228250
Step 416: 228250 + 550 = 228800
Step 417: 228800 + 550 = 229350
Step 418: 229350 + 550 = 229900
Step 419: 229900 + 550 = 230450
Step 420: 230450 + 550 = 231000
Step 421: 231000 + 550 = 231550
Step 422: 231550 + 550 = 232100
Step 423: 232100 + 550 = 232650
Step 424: 232650 + 550 = 233200
Step 425: 233200 + 550 = 233750
Step 426: 233750 + 550 = 234300
Step 427: 234300 + 550 = 234850
Step 428: 234850 + 550 = 235400
Step 429: 235400 + 550 = 235950
Step 430: 235950 + 550 = 236500
Step 431: 236500 + 550 = 237050
Step 432: 237050 + 550 = 237600
Step 433: 237600 + 550 = 238150
Step 434: 238150 + 550 = 238700
Step 435: 238700 + 550 = 239250
Step 436: 239250 + 550 = 239800
Step 437: 239800 + 550 = 240350
Step 438: 240350 + 550 = 240900
Step 439: 240900 + 550 = 241450
Step 440: 241450 + 550 = 242000
Step 441: 242000 + 550 = 242550
Step 442: 242550 + 550 = 243100
Step 443: 243100 + 550 = 243650
Step 444: 243650 + 550 = 244200
Step 445: 244200 + 550 = 244750
Step 446: 244750 + 550 = 245300
Step 447: 245300 + 550 = 245850
Step 448: 245850 + 550 = 246400
Step 449: 246400 + 550 = 246950
Step 450: 246950 + 550 = 247500
Step 451: 247500 + 550 = 248050
Step 452: 248050 + 550 = 248600
Step 453: 248600 + 550 = 249150
Step 454: 249150 + 550 = 249700
Step 455: 249700 + 550 = 250250

So, 550*455 = 250250