Sure thing, let's get straight to it. We start with 775 and we're going to multiply it by 456, which means adding 775 to itself 456 times.
Step 1: 0 + 775 = 775
Step 2: 775 + 775 = 1550
Step 3: 1550 + 775 = 2325
Step 4: 2325 + 775 = 3100
Step 5: 3100 + 775 = 3875
Step 6: 3875 + 775 = 4650
Step 7: 4650 + 775 = 5425
Step 8: 5425 + 775 = 6200
Step 9: 6200 + 775 = 6975
Step 10: 6975 + 775 = 7750
Step 11: 7750 + 775 = 8525
Step 12: 8525 + 775 = 9300
Step 13: 9300 + 775 = 10075
Step 14: 10075 + 775 = 10850
Step 15: 10850 + 775 = 11625
Step 16: 11625 + 775 = 12400
Step 17: 12400 + 775 = 13175
Step 18: 13175 + 775 = 13950
Step 19: 13950 + 775 = 14725
Step 20: 14725 + 775 = 15500
Step 21: 15500 + 775 = 16275
Step 22: 16275 + 775 = 17050
Step 23: 17050 + 775 = 17825
Step 24: 17825 + 775 = 18600
Step 25: 18600 + 775 = 19375
Step 26: 19375 + 775 = 20150
Step 27: 20150 + 775 = 20925
Step 28: 20925 + 775 = 21700
Step 29: 21700 + 775 = 22475
Step 30: 22475 + 775 = 23250
Step 31: 23250 + 775 = 24025
Step 32: 24025 + 775 = 24800
Step 33: 24800 + 775 = 25575
Step 34: 25575 + 775 = 26350
Step 35: 26350 + 775 = 27125
Step 36: 27125 + 775 = 27900
Step 37: 27900 + 775 = 28675
Step 38: 28675 + 775 = 29450
Step 39: 29450 + 775 = 30225
Step 40: 30225 + 775 = 31000
Step 41: 31000 + 775 = 31775
Step 42: 31775 + 775 = 32550
Step 43: 32550 + 775 = 33325
Step 44: 33325 + 775 = 34100
Step 45: 34100 + 775 = 34875
Step 46: 34875 + 775 = 35650
Step 47: 35650 + 775 = 36425
Step 48: 36425 + 775 = 37200
Step 49: 37200 + 775 = 37975
Step 50: 37975 + 775 = 38750
Step 51: 38750 + 775 = 39525
Step 52: 39525 + 775 = 40300
Step 53: 40300 + 775 = 41075
Step 54: 41075 + 775 = 41850
Step 55: 41850 + 775 = 42625
Step 56: 42625 + 775 = 43400
Step 57: 43400 + 775 = 44175
Step 58: 44175 + 775 = 44950
Step 59: 44950 + 775 = 45725
Step 60: 45725 + 775 = 46500
Step 61: 46500 + 775 = 47275
Step 62: 47275 + 775 = 48050
Step 63: 48050 + 775 = 48825
Step 64: 48825 + 775 = 49600
Step 65: 49600 + 775 = 50375
Step 66: 50375 + 775 = 51150
Step 67: 51150 + 775 = 51925
Step 68: 51925 + 775 = 52700
Step 69: 52700 + 775 = 53475
Step 70: 53475 + 775 = 54250
Step 71: 54250 + 775 = 55025
Step 72: 55025 + 775 = 55800
Step 73: 55800 + 775 = 56575
Step 74: 56575 + 775 = 57350
Step 75: 57350 + 775 = 58125
Step 76: 58125 + 775 = 58900
Step 77: 58900 + 775 = 59675
Step 78: 59675 + 775 = 60450
Step 79: 60450 + 775 = 61225
Step 80: 61225 + 775 = 62000
Step 81: 62000 + 775 = 62775
Step 82: 62775 + 775 = 63550
Step 83: 63550 + 775 = 64325
Step 84: 64325 + 775 = 65100
Step 85: 65100 + 775 = 65875
Step 86: 65875 + 775 = 66650
Step 87: 66650 + 775 = 67425
Step 88: 67425 + 775 = 68200
Step 89: 68200 + 775 = 68975
Step 90: 68975 + 775 = 69750
Step 91: 69750 + 775 = 70525
Step 92: 70525 + 775 = 71300
Step 93: 71300 + 775 = 72075
Step 94: 72075 + 775 = 72850
Step 95: 72850 + 775 = 73625
Step 96: 73625 + 775 = 74400
Step 97: 74400 + 775 = 75175
Step 98: 75175 + 775 = 75950
Step 99: 75950 + 775 = 76725
Step 100: 76725 + 775 = 77500
Step 101: 77500 + 775 = 78275
Step 102: 78275 + 775 = 79050
Step 103: 79050 + 775 = 79825
Step 104: 79825 + 775 = 80600
Step 105: 80600 + 775 = 81375
Step 106: 81375 + 775 = 82150
Step 107: 82150 + 775 = 82925
Step 108: 82925 + 775 = 83700
Step 109: 83700 + 775 = 84475
Step 110: 84475 + 775 = 85250
Step 111: 85250 + 775 = 86025
Step 112: 86025 + 775 = 86800
Step 113: 86800 + 775 = 87575
Step 114: 87575 + 775 = 88350
Step 115: 88350 + 775 = 89125
Step 116: 89125 + 775 = 89900
Step 117: 89900 + 775 = 90675
Step 118: 90675 + 775 = 91450
Step 119: 91450 + 775 = 92225
Step 120: 92225 + 775 = 93000
Step 121: 93000 + 775 = 93775
Step 122: 93775 + 775 = 94550
Step 123: 94550 + 775 = 95325
Step 124: 95325 + 775 = 96100
Step 125: 96100 + 775 = 96875
Step 126: 96875 + 775 = 97650
Step 127: 97650 + 775 = 98425
Step 128: 98425 + 775 = 99200
Step 129: 99200 + 775 = 99975
Step 130: 99975 + 775 = 100750
Step 131: 100750 + 775 = 101525
Step 132: 101525 + 775 = 102300
Step 133: 102300 + 775 = 103075
Step 134: 103075 + 775 = 103850
Step 135: 103850 + 775 = 104625
Step 136: 104625 + 775 = 105400
Step 137: 105400 + 775 = 106175
Step 138: 106175 + 775 = 106950
Step 139: 106950 + 775 = 107725
Step 140: 107725 + 775 = 108500
Step 141: 108500 + 775 = 109275
Step 142: 109275 + 775 = 110050
Step 143: 110050 + 775 = 110825
Step 144: 110825 + 775 = 111600
Step 145: 111600 + 775 = 112375
Step 146: 112375 + 775 = 113150
Step 147: 113150 + 775 = 113925
Step 148: 113925 + 775 = 114700
Step 149: 114700 + 775 = 115475
Step 150: 115475 + 775 = 116250
Step 151: 116250 + 775 = 117025
Step 152: 117025 + 775 = 117800
Step 153: 117800 + 775 = 118575
Step 154: 118575 + 775 = 119350
Step 155: 119350 + 775 = 120125
Step 156: 120125 + 775 = 120900
Step 157: 120900 + 775 = 121675
Step 158: 121675 + 775 = 122450
Step 159: 122450 + 775 = 123225
Step 160: 123225 + 775 = 124000
Step 161: 124000 + 775 = 124775
Step 162: 124775 + 775 = 125550
Step 163: 125550 + 775 = 126325
Step 164: 126325 + 775 = 127100
Step 165: 127100 + 775 = 127875
Step 166: 127875 + 775 = 128650
Step 167: 128650 + 775 = 129425
Step 168: 129425 + 775 = 130200
Step 169: 130200 + 775 = 130975
Step 170: 130975 + 775 = 131750
Step 171: 131750 + 775 = 132525
Step 172: 132525 + 775 = 133300
Step 173: 133300 + 775 = 134075
Step 174: 134075 + 775 = 134850
Step 175: 134850 + 775 = 135625
Step 176: 135625 + 775 = 136400
Step 177: 136400 + 775 = 137175
Step 178: 137175 + 775 = 137950
Step 179: 137950 + 775 = 138725
Step 180: 138725 + 775 = 139500
Step 181: 139500 + 775 = 140275
Step 182: 140275 + 775 = 141050
Step 183: 141050 + 775 = 141825
Step 184: 141825 + 775 = 142600
Step 185: 142600 + 775 = 143375
Step 186: 143375 + 775 = 144150
Step 187: 144150 + 775 = 144925
Step 188: 144925 + 775 = 145700
Step 189: 145700 + 775 = 146475
Step 190: 146475 + 775 = 147250
Step 191: 147250 + 775 = 148025
Step 192: 148025 + 775 = 148800
Step 193: 148800 + 775 = 149575
Step 194: 149575 + 775 = 150350
Step 195: 150350 + 775 = 151125
Step 196: 151125 + 775 = 151900
Step 197: 151900 + 775 = 152675
Step 198: 152675 + 775 = 153450
Step 199: 153450 + 775 = 154225
Step 200: 154225 + 775 = 155000
Step 201: 155000 + 775 = 155775
Step 202: 155775 + 775 = 156550
Step 203: 156550 + 775 = 157325
Step 204: 157325 + 775 = 158100
Step 205: 158100 + 775 = 158875
Step 206: 158875 + 775 = 159650
Step 207: 159650 + 775 = 160425
Step 208: 160425 + 775 = 161200
Step 209: 161200 + 775 = 161975
Step 210: 161975 + 775 = 162750
Step 211: 162750 + 775 = 163525
Step 212: 163525 + 775 = 164300
Step 213: 164300 + 775 = 165075
Step 214: 165075 + 775 = 165850
Step 215: 165850 + 775 = 166625
Step 216: 166625 + 775 = 167400
Step 217: 167400 + 775 = 168175
Step 218: 168175 + 775 = 168950
Step 219: 168950 + 775 = 169725
Step 220: 169725 + 775 = 170500
Step 221: 170500 + 775 = 171275
Step 222: 171275 + 775 = 172050
Step 223: 172050 + 775 = 172825
Step 224: 172825 + 775 = 173600
Step 225: 173600 + 775 = 174375
Step 226: 174375 + 775 = 175150
Step 227: 175150 + 775 = 175925
Step 228: 175925 + 775 = 176700
Step 229: 176700 + 775 = 177475
Step 230: 177475 + 775 = 178250
Step 231: 178250 + 775 = 179025
Step 232: 179025 + 775 = 179800
Step 233: 179800 + 775 = 180575
Step 234: 180575 + 775 = 181350
Step 235: 181350 + 775 = 182125
Step 236: 182125 + 775 = 182900
Step 237: 182900 + 775 = 183675
Step 238: 183675 + 775 = 184450
Step 239: 184450 + 775 = 185225
Step 240: 185225 + 775 = 186000
Step 241: 186000 + 775 = 186775
Step 242: 186775 + 775 = 187550
Step 243: 187550 + 775 = 188325
Step 244: 188325 + 775 = 189100
Step 245: 189100 + 775 = 189875
Step 246: 189875 + 775 = 190650
Step 247: 190650 + 775 = 191425
Step 248: 191425 + 775 = 192200
Step 249: 192200 + 775 = 192975
Step 250: 192975 + 775 = 193750
Step 251: 193750 + 775 = 194525
Step 252: 194525 + 775 = 195300
Step 253: 195300 + 775 = 196075
Step 254: 196075 + 775 = 196850
Step 255: 196850 + 775 = 197625
Step 256: 197625 + 775 = 198400
Step 257: 198400 + 775 = 199175
Step 258: 199175 + 775 = 199950
Step 259: 199950 + 775 = 200725
Step 260: 200725 + 775 = 201500
Step 261: 201500 + 775 = 202275
Step 262: 202275 + 775 = 203050
Step 263: 203050 + 775 = 203825
Step 264: 203825 + 775 = 204600
Step 265: 204600 + 775 = 205375
Step 266: 205375 + 775 = 206150
Step 267: 206150 + 775 = 206925
Step 268: 206925 + 775 = 207700
Step 269: 207700 + 775 = 208475
Step 270: 208475 + 775 = 209250
Step 271: 209250 + 775 = 210025
Step 272: 210025 + 775 = 210800
Step 273: 210800 + 775 = 211575
Step 274: 211575 + 775 = 212350
Step 275: 212350 + 775 = 213125
Step 276: 213125 + 775 = 213900
Step 277: 213900 + 775 = 214675
Step 278: 214675 + 775 = 215450
Step 279: 215450 + 775 = 216225
Step 280: 216225 + 775 = 217000
Step 281: 217000 + 775 = 217775
Step 282: 217775 + 775 = 218550
Step 283: 218550 + 775 = 219325
Step 284: 219325 + 775 = 220100
Step 285: 220100 + 775 = 220875
Step 286: 220875 + 775 = 221650
Step 287: 221650 + 775 = 222425
Step 288: 222425 + 775 = 223200
Step 289: 223200 + 775 = 223975
Step 290: 223975 + 775 = 224750
Step 291: 224750 + 775 = 225525
Step 292: 225525 + 775 = 226300
Step 293: 226300 + 775 = 227075
Step 294: 227075 + 775 = 227850
Step 295: 227850 + 775 = 228625
Step 296: 228625 + 775 = 229400
Step 297: 229400 + 775 = 230175
Step 298: 230175 + 775 = 230950
Step 299: 230950 + 775 = 231725
Step 300: 231725 + 775 = 232500
Step 301: 232500 + 775 = 233275
Step 302: 233275 + 775 = 234050
Step 303: 234050 + 775 = 234825
Step 304: 234825 + 775 = 235600
Step 305: 235600 + 775 = 236375
Step 306: 236375 + 775 = 237150
Step 307: 237150 + 775 = 237925
Step 308: 237925 + 775 = 238700
Step 309: 238700 + 775 = 239475
Step 310: 239475 + 775 = 240250
Step 311: 240250 + 775 = 241025
Step 312: 241025 + 775 = 241800
Step 313: 241800 + 775 = 242575
Step 314: 242575 + 775 = 243350
Step 315: 243350 + 775 = 244125
Step 316: 244125 + 775 = 244900
Step 317: 244900 + 775 = 245675
Step 318: 245675 + 775 = 246450
Step 319: 246450 + 775 = 247225
Step 320: 247225 + 775 = 248000
Step 321: 248000 + 775 = 248775
Step 322: 248775 + 775 = 249550
Step 323: 249550 + 775 = 250325
Step 324: 250325 + 775 = 251100
Step 325: 251100 + 775 = 251875
Step 326: 251875 + 775 = 252650
Step 327: 252650 + 775 = 253425
Step 328: 253425 + 775 = 254200
Step 329: 254200 + 775 = 254975
Step 330: 254975 + 775 = 255750
Step 331: 255750 + 775 = 256525
Step 332: 256525 + 775 = 257300
Step 333: 257300 + 775 = 258075
Step 334: 258075 + 775 = 258850
Step 335: 258850 + 775 = 259625
Step 336: 259625 + 775 = 260400
Step 337: 260400 + 775 = 261175
Step 338: 261175 + 775 = 261950
Step 339: 261950 + 775 = 262725
Step 340: 262725 + 775 = 263500
Step 341: 263500 + 775 = 264275
Step 342: 264275 + 775 = 265050
Step 343: 265050 + 775 = 265825
Step 344: 265825 + 775 = 266600
Step 345: 266600 + 775 = 267375
Step 346: 267375 + 775 = 268150
Step 347: 268150 + 775 = 268925
Step 348: 268925 + 775 = 269700
Step 349: 269700 + 775 = 270475
Step 350: 270475 + 775 = 271250
Step 351: 271250 + 775 = 272025
Step 352: 272025 + 775 = 272800
Step 353: 272800 + 775 = 273575
Step 354: 273575 + 775 = 274350
Step 355: 274350 + 775 = 275125
Step 356: 275125 + 775 = 275900
Step 357: 275900 + 775 = 276675
Step 358: 276675 + 775 = 277450
Step 359: 277450 + 775 = 278225
Step 360: 278225 + 775 = 279000
Step 361: 279000 + 775 = 279775
Step 362: 279775 + 775 = 280550
Step 363: 280550 + 775 = 281325
Step 364: 281325 + 775 = 282100
Step 365: 282100 + 775 = 282875
Step 366: 282875 + 775 = 283650
Step 367: 283650 + 775 = 284425
Step 368: 284425 + 775 = 285200
Step 369: 285200 + 775 = 285975
Step 370: 285975 + 775 = 286750
Step 371: 286750 + 775 = 287525
Step 372: 287525 + 775 = 288300
Step 373: 288300 + 775 = 289075
Step 374: 289075 + 775 = 289850
Step 375: 289850 + 775 = 290625
Step 376: 290625 + 775 = 291400
Step 377: 291400 + 775 = 292175
Step 378: 292175 + 775 = 292950
Step 379: 292950 + 775 = 293725
Step 380: 293725 + 775 = 294500
Step 381: 294500 + 775 = 295275
Step 382: 295275 + 775 = 296050
Step 383: 296050 + 775 = 296825
Step 384: 296825 + 775 = 297600
Step 385: 297600 + 775 = 298375
Step 386: 298375 + 775 = 299150
Step 387: 299150 + 775 = 299925
Step 388: 299925 + 775 = 300700
Step 389: 300700 + 775 = 301475
Step 390: 301475 + 775 = 302250
Step 391: 302250 + 775 = 303025
Step 392: 303025 + 775 = 303800
Step 393: 303800 + 775 = 304575
Step 394: 304575 + 775 = 305350
Step 395: 305350 + 775 = 306125
Step 396: 306125 + 775 = 306900
Step 397: 306900 + 775 = 307675
Step 398: 307675 + 775 = 308450
Step 399: 308450 + 775 = 309225
Step 400: 309225 + 775 = 310000
Step 401: 310000 + 775 = 310775
Step 402: 310775 + 775 = 311550
Step 403: 311550 + 775 = 312325
Step 404: 312325 + 775 = 313100
Step 405: 313100 + 775 = 313875
Step 406: 313875 + 775 = 314650
Step 407: 314650 + 775 = 315425
Step 408: 315425 + 775 = 316200
Step 409: 316200 + 775 = 316975
Step 410: 316975 + 775 = 317750
Step 411: 317750 + 775 = 318525
Step 412: 318525 + 775 = 319300
Step 413: 319300 + 775 = 320075
Step 414: 320075 + 775 = 320850
Step 415: 320850 + 775 = 321625
Step 416: 321625 + 775 = 322400
Step 417: 322400 + 775 = 323175
Step 418: 323175 + 775 = 323950
Step 419: 323950 + 775 = 324725
Step 420: 324725 + 775 = 325500
Step 421: 325500 + 775 = 326275
Step 422: 326275 + 775 = 327050
Step 423: 327050 + 775 = 327825
Step 424: 327825 + 775 = 328600
Step 425: 328600 + 775 = 329375
Step 426: 329375 + 775 = 330150
Step 427: 330150 + 775 = 330925
Step 428: 330925 + 775 = 331700
Step 429: 331700 + 775 = 332475
Step 430: 332475 + 775 = 333250
Step 431: 333250 + 775 = 334025
Step 432: 334025 + 775 = 334800
Step 433: 334800 + 775 = 335575
Step 434: 335575 + 775 = 336350
Step 435: 336350 + 775 = 337125
Step 436: 337125 + 775 = 337900
Step 437: 337900 + 775 = 338675
Step 438: 338675 + 775 = 339450
Step 439: 339450 + 775 = 340225
Step 440: 340225 + 775 = 341000
Step 441: 341000 + 775 = 341775
Step 442: 341775 + 775 = 342550
Step 443: 342550 + 775 = 343325
Step 444: 343325 + 775 = 344100
Step 445: 344100 + 775 = 344875
Step 446: 344875 + 775 = 345650
Step 447: 345650 + 775 = 346425
Step 448: 346425 + 775 = 347200
Step 449: 347200 + 775 = 347975
Step 450: 347975 + 775 = 348750
Step 451: 348750 + 775 = 349525
Step 452: 349525 + 775 = 350300
Step 453: 350300 + 775 = 351075
Step 454: 351075 + 775 = 351850
Step 455: 351850 + 775 = 352625
Step 456: 352625 + 775 = 353400

So, 775*456 = 353400