OK, let's crack this. We're given 704 and our task is to multiply it by 415. Essentially, we'll be adding 704 to itself 415 times.
Step 1: 0 + 704 = 704
Step 2: 704 + 704 = 1408
Step 3: 1408 + 704 = 2112
Step 4: 2112 + 704 = 2816
Step 5: 2816 + 704 = 3520
Step 6: 3520 + 704 = 4224
Step 7: 4224 + 704 = 4928
Step 8: 4928 + 704 = 5632
Step 9: 5632 + 704 = 6336
Step 10: 6336 + 704 = 7040
Step 11: 7040 + 704 = 7744
Step 12: 7744 + 704 = 8448
Step 13: 8448 + 704 = 9152
Step 14: 9152 + 704 = 9856
Step 15: 9856 + 704 = 10560
Step 16: 10560 + 704 = 11264
Step 17: 11264 + 704 = 11968
Step 18: 11968 + 704 = 12672
Step 19: 12672 + 704 = 13376
Step 20: 13376 + 704 = 14080
Step 21: 14080 + 704 = 14784
Step 22: 14784 + 704 = 15488
Step 23: 15488 + 704 = 16192
Step 24: 16192 + 704 = 16896
Step 25: 16896 + 704 = 17600
Step 26: 17600 + 704 = 18304
Step 27: 18304 + 704 = 19008
Step 28: 19008 + 704 = 19712
Step 29: 19712 + 704 = 20416
Step 30: 20416 + 704 = 21120
Step 31: 21120 + 704 = 21824
Step 32: 21824 + 704 = 22528
Step 33: 22528 + 704 = 23232
Step 34: 23232 + 704 = 23936
Step 35: 23936 + 704 = 24640
Step 36: 24640 + 704 = 25344
Step 37: 25344 + 704 = 26048
Step 38: 26048 + 704 = 26752
Step 39: 26752 + 704 = 27456
Step 40: 27456 + 704 = 28160
Step 41: 28160 + 704 = 28864
Step 42: 28864 + 704 = 29568
Step 43: 29568 + 704 = 30272
Step 44: 30272 + 704 = 30976
Step 45: 30976 + 704 = 31680
Step 46: 31680 + 704 = 32384
Step 47: 32384 + 704 = 33088
Step 48: 33088 + 704 = 33792
Step 49: 33792 + 704 = 34496
Step 50: 34496 + 704 = 35200
Step 51: 35200 + 704 = 35904
Step 52: 35904 + 704 = 36608
Step 53: 36608 + 704 = 37312
Step 54: 37312 + 704 = 38016
Step 55: 38016 + 704 = 38720
Step 56: 38720 + 704 = 39424
Step 57: 39424 + 704 = 40128
Step 58: 40128 + 704 = 40832
Step 59: 40832 + 704 = 41536
Step 60: 41536 + 704 = 42240
Step 61: 42240 + 704 = 42944
Step 62: 42944 + 704 = 43648
Step 63: 43648 + 704 = 44352
Step 64: 44352 + 704 = 45056
Step 65: 45056 + 704 = 45760
Step 66: 45760 + 704 = 46464
Step 67: 46464 + 704 = 47168
Step 68: 47168 + 704 = 47872
Step 69: 47872 + 704 = 48576
Step 70: 48576 + 704 = 49280
Step 71: 49280 + 704 = 49984
Step 72: 49984 + 704 = 50688
Step 73: 50688 + 704 = 51392
Step 74: 51392 + 704 = 52096
Step 75: 52096 + 704 = 52800
Step 76: 52800 + 704 = 53504
Step 77: 53504 + 704 = 54208
Step 78: 54208 + 704 = 54912
Step 79: 54912 + 704 = 55616
Step 80: 55616 + 704 = 56320
Step 81: 56320 + 704 = 57024
Step 82: 57024 + 704 = 57728
Step 83: 57728 + 704 = 58432
Step 84: 58432 + 704 = 59136
Step 85: 59136 + 704 = 59840
Step 86: 59840 + 704 = 60544
Step 87: 60544 + 704 = 61248
Step 88: 61248 + 704 = 61952
Step 89: 61952 + 704 = 62656
Step 90: 62656 + 704 = 63360
Step 91: 63360 + 704 = 64064
Step 92: 64064 + 704 = 64768
Step 93: 64768 + 704 = 65472
Step 94: 65472 + 704 = 66176
Step 95: 66176 + 704 = 66880
Step 96: 66880 + 704 = 67584
Step 97: 67584 + 704 = 68288
Step 98: 68288 + 704 = 68992
Step 99: 68992 + 704 = 69696
Step 100: 69696 + 704 = 70400
Step 101: 70400 + 704 = 71104
Step 102: 71104 + 704 = 71808
Step 103: 71808 + 704 = 72512
Step 104: 72512 + 704 = 73216
Step 105: 73216 + 704 = 73920
Step 106: 73920 + 704 = 74624
Step 107: 74624 + 704 = 75328
Step 108: 75328 + 704 = 76032
Step 109: 76032 + 704 = 76736
Step 110: 76736 + 704 = 77440
Step 111: 77440 + 704 = 78144
Step 112: 78144 + 704 = 78848
Step 113: 78848 + 704 = 79552
Step 114: 79552 + 704 = 80256
Step 115: 80256 + 704 = 80960
Step 116: 80960 + 704 = 81664
Step 117: 81664 + 704 = 82368
Step 118: 82368 + 704 = 83072
Step 119: 83072 + 704 = 83776
Step 120: 83776 + 704 = 84480
Step 121: 84480 + 704 = 85184
Step 122: 85184 + 704 = 85888
Step 123: 85888 + 704 = 86592
Step 124: 86592 + 704 = 87296
Step 125: 87296 + 704 = 88000
Step 126: 88000 + 704 = 88704
Step 127: 88704 + 704 = 89408
Step 128: 89408 + 704 = 90112
Step 129: 90112 + 704 = 90816
Step 130: 90816 + 704 = 91520
Step 131: 91520 + 704 = 92224
Step 132: 92224 + 704 = 92928
Step 133: 92928 + 704 = 93632
Step 134: 93632 + 704 = 94336
Step 135: 94336 + 704 = 95040
Step 136: 95040 + 704 = 95744
Step 137: 95744 + 704 = 96448
Step 138: 96448 + 704 = 97152
Step 139: 97152 + 704 = 97856
Step 140: 97856 + 704 = 98560
Step 141: 98560 + 704 = 99264
Step 142: 99264 + 704 = 99968
Step 143: 99968 + 704 = 100672
Step 144: 100672 + 704 = 101376
Step 145: 101376 + 704 = 102080
Step 146: 102080 + 704 = 102784
Step 147: 102784 + 704 = 103488
Step 148: 103488 + 704 = 104192
Step 149: 104192 + 704 = 104896
Step 150: 104896 + 704 = 105600
Step 151: 105600 + 704 = 106304
Step 152: 106304 + 704 = 107008
Step 153: 107008 + 704 = 107712
Step 154: 107712 + 704 = 108416
Step 155: 108416 + 704 = 109120
Step 156: 109120 + 704 = 109824
Step 157: 109824 + 704 = 110528
Step 158: 110528 + 704 = 111232
Step 159: 111232 + 704 = 111936
Step 160: 111936 + 704 = 112640
Step 161: 112640 + 704 = 113344
Step 162: 113344 + 704 = 114048
Step 163: 114048 + 704 = 114752
Step 164: 114752 + 704 = 115456
Step 165: 115456 + 704 = 116160
Step 166: 116160 + 704 = 116864
Step 167: 116864 + 704 = 117568
Step 168: 117568 + 704 = 118272
Step 169: 118272 + 704 = 118976
Step 170: 118976 + 704 = 119680
Step 171: 119680 + 704 = 120384
Step 172: 120384 + 704 = 121088
Step 173: 121088 + 704 = 121792
Step 174: 121792 + 704 = 122496
Step 175: 122496 + 704 = 123200
Step 176: 123200 + 704 = 123904
Step 177: 123904 + 704 = 124608
Step 178: 124608 + 704 = 125312
Step 179: 125312 + 704 = 126016
Step 180: 126016 + 704 = 126720
Step 181: 126720 + 704 = 127424
Step 182: 127424 + 704 = 128128
Step 183: 128128 + 704 = 128832
Step 184: 128832 + 704 = 129536
Step 185: 129536 + 704 = 130240
Step 186: 130240 + 704 = 130944
Step 187: 130944 + 704 = 131648
Step 188: 131648 + 704 = 132352
Step 189: 132352 + 704 = 133056
Step 190: 133056 + 704 = 133760
Step 191: 133760 + 704 = 134464
Step 192: 134464 + 704 = 135168
Step 193: 135168 + 704 = 135872
Step 194: 135872 + 704 = 136576
Step 195: 136576 + 704 = 137280
Step 196: 137280 + 704 = 137984
Step 197: 137984 + 704 = 138688
Step 198: 138688 + 704 = 139392
Step 199: 139392 + 704 = 140096
Step 200: 140096 + 704 = 140800
Step 201: 140800 + 704 = 141504
Step 202: 141504 + 704 = 142208
Step 203: 142208 + 704 = 142912
Step 204: 142912 + 704 = 143616
Step 205: 143616 + 704 = 144320
Step 206: 144320 + 704 = 145024
Step 207: 145024 + 704 = 145728
Step 208: 145728 + 704 = 146432
Step 209: 146432 + 704 = 147136
Step 210: 147136 + 704 = 147840
Step 211: 147840 + 704 = 148544
Step 212: 148544 + 704 = 149248
Step 213: 149248 + 704 = 149952
Step 214: 149952 + 704 = 150656
Step 215: 150656 + 704 = 151360
Step 216: 151360 + 704 = 152064
Step 217: 152064 + 704 = 152768
Step 218: 152768 + 704 = 153472
Step 219: 153472 + 704 = 154176
Step 220: 154176 + 704 = 154880
Step 221: 154880 + 704 = 155584
Step 222: 155584 + 704 = 156288
Step 223: 156288 + 704 = 156992
Step 224: 156992 + 704 = 157696
Step 225: 157696 + 704 = 158400
Step 226: 158400 + 704 = 159104
Step 227: 159104 + 704 = 159808
Step 228: 159808 + 704 = 160512
Step 229: 160512 + 704 = 161216
Step 230: 161216 + 704 = 161920
Step 231: 161920 + 704 = 162624
Step 232: 162624 + 704 = 163328
Step 233: 163328 + 704 = 164032
Step 234: 164032 + 704 = 164736
Step 235: 164736 + 704 = 165440
Step 236: 165440 + 704 = 166144
Step 237: 166144 + 704 = 166848
Step 238: 166848 + 704 = 167552
Step 239: 167552 + 704 = 168256
Step 240: 168256 + 704 = 168960
Step 241: 168960 + 704 = 169664
Step 242: 169664 + 704 = 170368
Step 243: 170368 + 704 = 171072
Step 244: 171072 + 704 = 171776
Step 245: 171776 + 704 = 172480
Step 246: 172480 + 704 = 173184
Step 247: 173184 + 704 = 173888
Step 248: 173888 + 704 = 174592
Step 249: 174592 + 704 = 175296
Step 250: 175296 + 704 = 176000
Step 251: 176000 + 704 = 176704
Step 252: 176704 + 704 = 177408
Step 253: 177408 + 704 = 178112
Step 254: 178112 + 704 = 178816
Step 255: 178816 + 704 = 179520
Step 256: 179520 + 704 = 180224
Step 257: 180224 + 704 = 180928
Step 258: 180928 + 704 = 181632
Step 259: 181632 + 704 = 182336
Step 260: 182336 + 704 = 183040
Step 261: 183040 + 704 = 183744
Step 262: 183744 + 704 = 184448
Step 263: 184448 + 704 = 185152
Step 264: 185152 + 704 = 185856
Step 265: 185856 + 704 = 186560
Step 266: 186560 + 704 = 187264
Step 267: 187264 + 704 = 187968
Step 268: 187968 + 704 = 188672
Step 269: 188672 + 704 = 189376
Step 270: 189376 + 704 = 190080
Step 271: 190080 + 704 = 190784
Step 272: 190784 + 704 = 191488
Step 273: 191488 + 704 = 192192
Step 274: 192192 + 704 = 192896
Step 275: 192896 + 704 = 193600
Step 276: 193600 + 704 = 194304
Step 277: 194304 + 704 = 195008
Step 278: 195008 + 704 = 195712
Step 279: 195712 + 704 = 196416
Step 280: 196416 + 704 = 197120
Step 281: 197120 + 704 = 197824
Step 282: 197824 + 704 = 198528
Step 283: 198528 + 704 = 199232
Step 284: 199232 + 704 = 199936
Step 285: 199936 + 704 = 200640
Step 286: 200640 + 704 = 201344
Step 287: 201344 + 704 = 202048
Step 288: 202048 + 704 = 202752
Step 289: 202752 + 704 = 203456
Step 290: 203456 + 704 = 204160
Step 291: 204160 + 704 = 204864
Step 292: 204864 + 704 = 205568
Step 293: 205568 + 704 = 206272
Step 294: 206272 + 704 = 206976
Step 295: 206976 + 704 = 207680
Step 296: 207680 + 704 = 208384
Step 297: 208384 + 704 = 209088
Step 298: 209088 + 704 = 209792
Step 299: 209792 + 704 = 210496
Step 300: 210496 + 704 = 211200
Step 301: 211200 + 704 = 211904
Step 302: 211904 + 704 = 212608
Step 303: 212608 + 704 = 213312
Step 304: 213312 + 704 = 214016
Step 305: 214016 + 704 = 214720
Step 306: 214720 + 704 = 215424
Step 307: 215424 + 704 = 216128
Step 308: 216128 + 704 = 216832
Step 309: 216832 + 704 = 217536
Step 310: 217536 + 704 = 218240
Step 311: 218240 + 704 = 218944
Step 312: 218944 + 704 = 219648
Step 313: 219648 + 704 = 220352
Step 314: 220352 + 704 = 221056
Step 315: 221056 + 704 = 221760
Step 316: 221760 + 704 = 222464
Step 317: 222464 + 704 = 223168
Step 318: 223168 + 704 = 223872
Step 319: 223872 + 704 = 224576
Step 320: 224576 + 704 = 225280
Step 321: 225280 + 704 = 225984
Step 322: 225984 + 704 = 226688
Step 323: 226688 + 704 = 227392
Step 324: 227392 + 704 = 228096
Step 325: 228096 + 704 = 228800
Step 326: 228800 + 704 = 229504
Step 327: 229504 + 704 = 230208
Step 328: 230208 + 704 = 230912
Step 329: 230912 + 704 = 231616
Step 330: 231616 + 704 = 232320
Step 331: 232320 + 704 = 233024
Step 332: 233024 + 704 = 233728
Step 333: 233728 + 704 = 234432
Step 334: 234432 + 704 = 235136
Step 335: 235136 + 704 = 235840
Step 336: 235840 + 704 = 236544
Step 337: 236544 + 704 = 237248
Step 338: 237248 + 704 = 237952
Step 339: 237952 + 704 = 238656
Step 340: 238656 + 704 = 239360
Step 341: 239360 + 704 = 240064
Step 342: 240064 + 704 = 240768
Step 343: 240768 + 704 = 241472
Step 344: 241472 + 704 = 242176
Step 345: 242176 + 704 = 242880
Step 346: 242880 + 704 = 243584
Step 347: 243584 + 704 = 244288
Step 348: 244288 + 704 = 244992
Step 349: 244992 + 704 = 245696
Step 350: 245696 + 704 = 246400
Step 351: 246400 + 704 = 247104
Step 352: 247104 + 704 = 247808
Step 353: 247808 + 704 = 248512
Step 354: 248512 + 704 = 249216
Step 355: 249216 + 704 = 249920
Step 356: 249920 + 704 = 250624
Step 357: 250624 + 704 = 251328
Step 358: 251328 + 704 = 252032
Step 359: 252032 + 704 = 252736
Step 360: 252736 + 704 = 253440
Step 361: 253440 + 704 = 254144
Step 362: 254144 + 704 = 254848
Step 363: 254848 + 704 = 255552
Step 364: 255552 + 704 = 256256
Step 365: 256256 + 704 = 256960
Step 366: 256960 + 704 = 257664
Step 367: 257664 + 704 = 258368
Step 368: 258368 + 704 = 259072
Step 369: 259072 + 704 = 259776
Step 370: 259776 + 704 = 260480
Step 371: 260480 + 704 = 261184
Step 372: 261184 + 704 = 261888
Step 373: 261888 + 704 = 262592
Step 374: 262592 + 704 = 263296
Step 375: 263296 + 704 = 264000
Step 376: 264000 + 704 = 264704
Step 377: 264704 + 704 = 265408
Step 378: 265408 + 704 = 266112
Step 379: 266112 + 704 = 266816
Step 380: 266816 + 704 = 267520
Step 381: 267520 + 704 = 268224
Step 382: 268224 + 704 = 268928
Step 383: 268928 + 704 = 269632
Step 384: 269632 + 704 = 270336
Step 385: 270336 + 704 = 271040
Step 386: 271040 + 704 = 271744
Step 387: 271744 + 704 = 272448
Step 388: 272448 + 704 = 273152
Step 389: 273152 + 704 = 273856
Step 390: 273856 + 704 = 274560
Step 391: 274560 + 704 = 275264
Step 392: 275264 + 704 = 275968
Step 393: 275968 + 704 = 276672
Step 394: 276672 + 704 = 277376
Step 395: 277376 + 704 = 278080
Step 396: 278080 + 704 = 278784
Step 397: 278784 + 704 = 279488
Step 398: 279488 + 704 = 280192
Step 399: 280192 + 704 = 280896
Step 400: 280896 + 704 = 281600
Step 401: 281600 + 704 = 282304
Step 402: 282304 + 704 = 283008
Step 403: 283008 + 704 = 283712
Step 404: 283712 + 704 = 284416
Step 405: 284416 + 704 = 285120
Step 406: 285120 + 704 = 285824
Step 407: 285824 + 704 = 286528
Step 408: 286528 + 704 = 287232
Step 409: 287232 + 704 = 287936
Step 410: 287936 + 704 = 288640
Step 411: 288640 + 704 = 289344
Step 412: 289344 + 704 = 290048
Step 413: 290048 + 704 = 290752
Step 414: 290752 + 704 = 291456
Step 415: 291456 + 704 = 292160

So, 704*415 = 292160