Alright, let's solve this math problem step by step. First, we have the number 345. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 416. So, we're going to take the number 345 and add it to itself 416 times.
Step 1: 0 + 345 = 345
Step 2: 345 + 345 = 690
Step 3: 690 + 345 = 1035
Step 4: 1035 + 345 = 1380
Step 5: 1380 + 345 = 1725
Step 6: 1725 + 345 = 2070
Step 7: 2070 + 345 = 2415
Step 8: 2415 + 345 = 2760
Step 9: 2760 + 345 = 3105
Step 10: 3105 + 345 = 3450
Step 11: 3450 + 345 = 3795
Step 12: 3795 + 345 = 4140
Step 13: 4140 + 345 = 4485
Step 14: 4485 + 345 = 4830
Step 15: 4830 + 345 = 5175
Step 16: 5175 + 345 = 5520
Step 17: 5520 + 345 = 5865
Step 18: 5865 + 345 = 6210
Step 19: 6210 + 345 = 6555
Step 20: 6555 + 345 = 6900
Step 21: 6900 + 345 = 7245
Step 22: 7245 + 345 = 7590
Step 23: 7590 + 345 = 7935
Step 24: 7935 + 345 = 8280
Step 25: 8280 + 345 = 8625
Step 26: 8625 + 345 = 8970
Step 27: 8970 + 345 = 9315
Step 28: 9315 + 345 = 9660
Step 29: 9660 + 345 = 10005
Step 30: 10005 + 345 = 10350
Step 31: 10350 + 345 = 10695
Step 32: 10695 + 345 = 11040
Step 33: 11040 + 345 = 11385
Step 34: 11385 + 345 = 11730
Step 35: 11730 + 345 = 12075
Step 36: 12075 + 345 = 12420
Step 37: 12420 + 345 = 12765
Step 38: 12765 + 345 = 13110
Step 39: 13110 + 345 = 13455
Step 40: 13455 + 345 = 13800
Step 41: 13800 + 345 = 14145
Step 42: 14145 + 345 = 14490
Step 43: 14490 + 345 = 14835
Step 44: 14835 + 345 = 15180
Step 45: 15180 + 345 = 15525
Step 46: 15525 + 345 = 15870
Step 47: 15870 + 345 = 16215
Step 48: 16215 + 345 = 16560
Step 49: 16560 + 345 = 16905
Step 50: 16905 + 345 = 17250
Step 51: 17250 + 345 = 17595
Step 52: 17595 + 345 = 17940
Step 53: 17940 + 345 = 18285
Step 54: 18285 + 345 = 18630
Step 55: 18630 + 345 = 18975
Step 56: 18975 + 345 = 19320
Step 57: 19320 + 345 = 19665
Step 58: 19665 + 345 = 20010
Step 59: 20010 + 345 = 20355
Step 60: 20355 + 345 = 20700
Step 61: 20700 + 345 = 21045
Step 62: 21045 + 345 = 21390
Step 63: 21390 + 345 = 21735
Step 64: 21735 + 345 = 22080
Step 65: 22080 + 345 = 22425
Step 66: 22425 + 345 = 22770
Step 67: 22770 + 345 = 23115
Step 68: 23115 + 345 = 23460
Step 69: 23460 + 345 = 23805
Step 70: 23805 + 345 = 24150
Step 71: 24150 + 345 = 24495
Step 72: 24495 + 345 = 24840
Step 73: 24840 + 345 = 25185
Step 74: 25185 + 345 = 25530
Step 75: 25530 + 345 = 25875
Step 76: 25875 + 345 = 26220
Step 77: 26220 + 345 = 26565
Step 78: 26565 + 345 = 26910
Step 79: 26910 + 345 = 27255
Step 80: 27255 + 345 = 27600
Step 81: 27600 + 345 = 27945
Step 82: 27945 + 345 = 28290
Step 83: 28290 + 345 = 28635
Step 84: 28635 + 345 = 28980
Step 85: 28980 + 345 = 29325
Step 86: 29325 + 345 = 29670
Step 87: 29670 + 345 = 30015
Step 88: 30015 + 345 = 30360
Step 89: 30360 + 345 = 30705
Step 90: 30705 + 345 = 31050
Step 91: 31050 + 345 = 31395
Step 92: 31395 + 345 = 31740
Step 93: 31740 + 345 = 32085
Step 94: 32085 + 345 = 32430
Step 95: 32430 + 345 = 32775
Step 96: 32775 + 345 = 33120
Step 97: 33120 + 345 = 33465
Step 98: 33465 + 345 = 33810
Step 99: 33810 + 345 = 34155
Step 100: 34155 + 345 = 34500
Step 101: 34500 + 345 = 34845
Step 102: 34845 + 345 = 35190
Step 103: 35190 + 345 = 35535
Step 104: 35535 + 345 = 35880
Step 105: 35880 + 345 = 36225
Step 106: 36225 + 345 = 36570
Step 107: 36570 + 345 = 36915
Step 108: 36915 + 345 = 37260
Step 109: 37260 + 345 = 37605
Step 110: 37605 + 345 = 37950
Step 111: 37950 + 345 = 38295
Step 112: 38295 + 345 = 38640
Step 113: 38640 + 345 = 38985
Step 114: 38985 + 345 = 39330
Step 115: 39330 + 345 = 39675
Step 116: 39675 + 345 = 40020
Step 117: 40020 + 345 = 40365
Step 118: 40365 + 345 = 40710
Step 119: 40710 + 345 = 41055
Step 120: 41055 + 345 = 41400
Step 121: 41400 + 345 = 41745
Step 122: 41745 + 345 = 42090
Step 123: 42090 + 345 = 42435
Step 124: 42435 + 345 = 42780
Step 125: 42780 + 345 = 43125
Step 126: 43125 + 345 = 43470
Step 127: 43470 + 345 = 43815
Step 128: 43815 + 345 = 44160
Step 129: 44160 + 345 = 44505
Step 130: 44505 + 345 = 44850
Step 131: 44850 + 345 = 45195
Step 132: 45195 + 345 = 45540
Step 133: 45540 + 345 = 45885
Step 134: 45885 + 345 = 46230
Step 135: 46230 + 345 = 46575
Step 136: 46575 + 345 = 46920
Step 137: 46920 + 345 = 47265
Step 138: 47265 + 345 = 47610
Step 139: 47610 + 345 = 47955
Step 140: 47955 + 345 = 48300
Step 141: 48300 + 345 = 48645
Step 142: 48645 + 345 = 48990
Step 143: 48990 + 345 = 49335
Step 144: 49335 + 345 = 49680
Step 145: 49680 + 345 = 50025
Step 146: 50025 + 345 = 50370
Step 147: 50370 + 345 = 50715
Step 148: 50715 + 345 = 51060
Step 149: 51060 + 345 = 51405
Step 150: 51405 + 345 = 51750
Step 151: 51750 + 345 = 52095
Step 152: 52095 + 345 = 52440
Step 153: 52440 + 345 = 52785
Step 154: 52785 + 345 = 53130
Step 155: 53130 + 345 = 53475
Step 156: 53475 + 345 = 53820
Step 157: 53820 + 345 = 54165
Step 158: 54165 + 345 = 54510
Step 159: 54510 + 345 = 54855
Step 160: 54855 + 345 = 55200
Step 161: 55200 + 345 = 55545
Step 162: 55545 + 345 = 55890
Step 163: 55890 + 345 = 56235
Step 164: 56235 + 345 = 56580
Step 165: 56580 + 345 = 56925
Step 166: 56925 + 345 = 57270
Step 167: 57270 + 345 = 57615
Step 168: 57615 + 345 = 57960
Step 169: 57960 + 345 = 58305
Step 170: 58305 + 345 = 58650
Step 171: 58650 + 345 = 58995
Step 172: 58995 + 345 = 59340
Step 173: 59340 + 345 = 59685
Step 174: 59685 + 345 = 60030
Step 175: 60030 + 345 = 60375
Step 176: 60375 + 345 = 60720
Step 177: 60720 + 345 = 61065
Step 178: 61065 + 345 = 61410
Step 179: 61410 + 345 = 61755
Step 180: 61755 + 345 = 62100
Step 181: 62100 + 345 = 62445
Step 182: 62445 + 345 = 62790
Step 183: 62790 + 345 = 63135
Step 184: 63135 + 345 = 63480
Step 185: 63480 + 345 = 63825
Step 186: 63825 + 345 = 64170
Step 187: 64170 + 345 = 64515
Step 188: 64515 + 345 = 64860
Step 189: 64860 + 345 = 65205
Step 190: 65205 + 345 = 65550
Step 191: 65550 + 345 = 65895
Step 192: 65895 + 345 = 66240
Step 193: 66240 + 345 = 66585
Step 194: 66585 + 345 = 66930
Step 195: 66930 + 345 = 67275
Step 196: 67275 + 345 = 67620
Step 197: 67620 + 345 = 67965
Step 198: 67965 + 345 = 68310
Step 199: 68310 + 345 = 68655
Step 200: 68655 + 345 = 69000
Step 201: 69000 + 345 = 69345
Step 202: 69345 + 345 = 69690
Step 203: 69690 + 345 = 70035
Step 204: 70035 + 345 = 70380
Step 205: 70380 + 345 = 70725
Step 206: 70725 + 345 = 71070
Step 207: 71070 + 345 = 71415
Step 208: 71415 + 345 = 71760
Step 209: 71760 + 345 = 72105
Step 210: 72105 + 345 = 72450
Step 211: 72450 + 345 = 72795
Step 212: 72795 + 345 = 73140
Step 213: 73140 + 345 = 73485
Step 214: 73485 + 345 = 73830
Step 215: 73830 + 345 = 74175
Step 216: 74175 + 345 = 74520
Step 217: 74520 + 345 = 74865
Step 218: 74865 + 345 = 75210
Step 219: 75210 + 345 = 75555
Step 220: 75555 + 345 = 75900
Step 221: 75900 + 345 = 76245
Step 222: 76245 + 345 = 76590
Step 223: 76590 + 345 = 76935
Step 224: 76935 + 345 = 77280
Step 225: 77280 + 345 = 77625
Step 226: 77625 + 345 = 77970
Step 227: 77970 + 345 = 78315
Step 228: 78315 + 345 = 78660
Step 229: 78660 + 345 = 79005
Step 230: 79005 + 345 = 79350
Step 231: 79350 + 345 = 79695
Step 232: 79695 + 345 = 80040
Step 233: 80040 + 345 = 80385
Step 234: 80385 + 345 = 80730
Step 235: 80730 + 345 = 81075
Step 236: 81075 + 345 = 81420
Step 237: 81420 + 345 = 81765
Step 238: 81765 + 345 = 82110
Step 239: 82110 + 345 = 82455
Step 240: 82455 + 345 = 82800
Step 241: 82800 + 345 = 83145
Step 242: 83145 + 345 = 83490
Step 243: 83490 + 345 = 83835
Step 244: 83835 + 345 = 84180
Step 245: 84180 + 345 = 84525
Step 246: 84525 + 345 = 84870
Step 247: 84870 + 345 = 85215
Step 248: 85215 + 345 = 85560
Step 249: 85560 + 345 = 85905
Step 250: 85905 + 345 = 86250
Step 251: 86250 + 345 = 86595
Step 252: 86595 + 345 = 86940
Step 253: 86940 + 345 = 87285
Step 254: 87285 + 345 = 87630
Step 255: 87630 + 345 = 87975
Step 256: 87975 + 345 = 88320
Step 257: 88320 + 345 = 88665
Step 258: 88665 + 345 = 89010
Step 259: 89010 + 345 = 89355
Step 260: 89355 + 345 = 89700
Step 261: 89700 + 345 = 90045
Step 262: 90045 + 345 = 90390
Step 263: 90390 + 345 = 90735
Step 264: 90735 + 345 = 91080
Step 265: 91080 + 345 = 91425
Step 266: 91425 + 345 = 91770
Step 267: 91770 + 345 = 92115
Step 268: 92115 + 345 = 92460
Step 269: 92460 + 345 = 92805
Step 270: 92805 + 345 = 93150
Step 271: 93150 + 345 = 93495
Step 272: 93495 + 345 = 93840
Step 273: 93840 + 345 = 94185
Step 274: 94185 + 345 = 94530
Step 275: 94530 + 345 = 94875
Step 276: 94875 + 345 = 95220
Step 277: 95220 + 345 = 95565
Step 278: 95565 + 345 = 95910
Step 279: 95910 + 345 = 96255
Step 280: 96255 + 345 = 96600
Step 281: 96600 + 345 = 96945
Step 282: 96945 + 345 = 97290
Step 283: 97290 + 345 = 97635
Step 284: 97635 + 345 = 97980
Step 285: 97980 + 345 = 98325
Step 286: 98325 + 345 = 98670
Step 287: 98670 + 345 = 99015
Step 288: 99015 + 345 = 99360
Step 289: 99360 + 345 = 99705
Step 290: 99705 + 345 = 100050
Step 291: 100050 + 345 = 100395
Step 292: 100395 + 345 = 100740
Step 293: 100740 + 345 = 101085
Step 294: 101085 + 345 = 101430
Step 295: 101430 + 345 = 101775
Step 296: 101775 + 345 = 102120
Step 297: 102120 + 345 = 102465
Step 298: 102465 + 345 = 102810
Step 299: 102810 + 345 = 103155
Step 300: 103155 + 345 = 103500
Step 301: 103500 + 345 = 103845
Step 302: 103845 + 345 = 104190
Step 303: 104190 + 345 = 104535
Step 304: 104535 + 345 = 104880
Step 305: 104880 + 345 = 105225
Step 306: 105225 + 345 = 105570
Step 307: 105570 + 345 = 105915
Step 308: 105915 + 345 = 106260
Step 309: 106260 + 345 = 106605
Step 310: 106605 + 345 = 106950
Step 311: 106950 + 345 = 107295
Step 312: 107295 + 345 = 107640
Step 313: 107640 + 345 = 107985
Step 314: 107985 + 345 = 108330
Step 315: 108330 + 345 = 108675
Step 316: 108675 + 345 = 109020
Step 317: 109020 + 345 = 109365
Step 318: 109365 + 345 = 109710
Step 319: 109710 + 345 = 110055
Step 320: 110055 + 345 = 110400
Step 321: 110400 + 345 = 110745
Step 322: 110745 + 345 = 111090
Step 323: 111090 + 345 = 111435
Step 324: 111435 + 345 = 111780
Step 325: 111780 + 345 = 112125
Step 326: 112125 + 345 = 112470
Step 327: 112470 + 345 = 112815
Step 328: 112815 + 345 = 113160
Step 329: 113160 + 345 = 113505
Step 330: 113505 + 345 = 113850
Step 331: 113850 + 345 = 114195
Step 332: 114195 + 345 = 114540
Step 333: 114540 + 345 = 114885
Step 334: 114885 + 345 = 115230
Step 335: 115230 + 345 = 115575
Step 336: 115575 + 345 = 115920
Step 337: 115920 + 345 = 116265
Step 338: 116265 + 345 = 116610
Step 339: 116610 + 345 = 116955
Step 340: 116955 + 345 = 117300
Step 341: 117300 + 345 = 117645
Step 342: 117645 + 345 = 117990
Step 343: 117990 + 345 = 118335
Step 344: 118335 + 345 = 118680
Step 345: 118680 + 345 = 119025
Step 346: 119025 + 345 = 119370
Step 347: 119370 + 345 = 119715
Step 348: 119715 + 345 = 120060
Step 349: 120060 + 345 = 120405
Step 350: 120405 + 345 = 120750
Step 351: 120750 + 345 = 121095
Step 352: 121095 + 345 = 121440
Step 353: 121440 + 345 = 121785
Step 354: 121785 + 345 = 122130
Step 355: 122130 + 345 = 122475
Step 356: 122475 + 345 = 122820
Step 357: 122820 + 345 = 123165
Step 358: 123165 + 345 = 123510
Step 359: 123510 + 345 = 123855
Step 360: 123855 + 345 = 124200
Step 361: 124200 + 345 = 124545
Step 362: 124545 + 345 = 124890
Step 363: 124890 + 345 = 125235
Step 364: 125235 + 345 = 125580
Step 365: 125580 + 345 = 125925
Step 366: 125925 + 345 = 126270
Step 367: 126270 + 345 = 126615
Step 368: 126615 + 345 = 126960
Step 369: 126960 + 345 = 127305
Step 370: 127305 + 345 = 127650
Step 371: 127650 + 345 = 127995
Step 372: 127995 + 345 = 128340
Step 373: 128340 + 345 = 128685
Step 374: 128685 + 345 = 129030
Step 375: 129030 + 345 = 129375
Step 376: 129375 + 345 = 129720
Step 377: 129720 + 345 = 130065
Step 378: 130065 + 345 = 130410
Step 379: 130410 + 345 = 130755
Step 380: 130755 + 345 = 131100
Step 381: 131100 + 345 = 131445
Step 382: 131445 + 345 = 131790
Step 383: 131790 + 345 = 132135
Step 384: 132135 + 345 = 132480
Step 385: 132480 + 345 = 132825
Step 386: 132825 + 345 = 133170
Step 387: 133170 + 345 = 133515
Step 388: 133515 + 345 = 133860
Step 389: 133860 + 345 = 134205
Step 390: 134205 + 345 = 134550
Step 391: 134550 + 345 = 134895
Step 392: 134895 + 345 = 135240
Step 393: 135240 + 345 = 135585
Step 394: 135585 + 345 = 135930
Step 395: 135930 + 345 = 136275
Step 396: 136275 + 345 = 136620
Step 397: 136620 + 345 = 136965
Step 398: 136965 + 345 = 137310
Step 399: 137310 + 345 = 137655
Step 400: 137655 + 345 = 138000
Step 401: 138000 + 345 = 138345
Step 402: 138345 + 345 = 138690
Step 403: 138690 + 345 = 139035
Step 404: 139035 + 345 = 139380
Step 405: 139380 + 345 = 139725
Step 406: 139725 + 345 = 140070
Step 407: 140070 + 345 = 140415
Step 408: 140415 + 345 = 140760
Step 409: 140760 + 345 = 141105
Step 410: 141105 + 345 = 141450
Step 411: 141450 + 345 = 141795
Step 412: 141795 + 345 = 142140
Step 413: 142140 + 345 = 142485
Step 414: 142485 + 345 = 142830
Step 415: 142830 + 345 = 143175
Step 416: 143175 + 345 = 143520

So, 345*416 = 143520