Alright, let's solve this math problem step by step. First, we have the number 939. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 345. So, we're going to take the number 939 and add it to itself 345 times.
Step 1: 0 + 939 = 939
Step 2: 939 + 939 = 1878
Step 3: 1878 + 939 = 2817
Step 4: 2817 + 939 = 3756
Step 5: 3756 + 939 = 4695
Step 6: 4695 + 939 = 5634
Step 7: 5634 + 939 = 6573
Step 8: 6573 + 939 = 7512
Step 9: 7512 + 939 = 8451
Step 10: 8451 + 939 = 9390
Step 11: 9390 + 939 = 10329
Step 12: 10329 + 939 = 11268
Step 13: 11268 + 939 = 12207
Step 14: 12207 + 939 = 13146
Step 15: 13146 + 939 = 14085
Step 16: 14085 + 939 = 15024
Step 17: 15024 + 939 = 15963
Step 18: 15963 + 939 = 16902
Step 19: 16902 + 939 = 17841
Step 20: 17841 + 939 = 18780
Step 21: 18780 + 939 = 19719
Step 22: 19719 + 939 = 20658
Step 23: 20658 + 939 = 21597
Step 24: 21597 + 939 = 22536
Step 25: 22536 + 939 = 23475
Step 26: 23475 + 939 = 24414
Step 27: 24414 + 939 = 25353
Step 28: 25353 + 939 = 26292
Step 29: 26292 + 939 = 27231
Step 30: 27231 + 939 = 28170
Step 31: 28170 + 939 = 29109
Step 32: 29109 + 939 = 30048
Step 33: 30048 + 939 = 30987
Step 34: 30987 + 939 = 31926
Step 35: 31926 + 939 = 32865
Step 36: 32865 + 939 = 33804
Step 37: 33804 + 939 = 34743
Step 38: 34743 + 939 = 35682
Step 39: 35682 + 939 = 36621
Step 40: 36621 + 939 = 37560
Step 41: 37560 + 939 = 38499
Step 42: 38499 + 939 = 39438
Step 43: 39438 + 939 = 40377
Step 44: 40377 + 939 = 41316
Step 45: 41316 + 939 = 42255
Step 46: 42255 + 939 = 43194
Step 47: 43194 + 939 = 44133
Step 48: 44133 + 939 = 45072
Step 49: 45072 + 939 = 46011
Step 50: 46011 + 939 = 46950
Step 51: 46950 + 939 = 47889
Step 52: 47889 + 939 = 48828
Step 53: 48828 + 939 = 49767
Step 54: 49767 + 939 = 50706
Step 55: 50706 + 939 = 51645
Step 56: 51645 + 939 = 52584
Step 57: 52584 + 939 = 53523
Step 58: 53523 + 939 = 54462
Step 59: 54462 + 939 = 55401
Step 60: 55401 + 939 = 56340
Step 61: 56340 + 939 = 57279
Step 62: 57279 + 939 = 58218
Step 63: 58218 + 939 = 59157
Step 64: 59157 + 939 = 60096
Step 65: 60096 + 939 = 61035
Step 66: 61035 + 939 = 61974
Step 67: 61974 + 939 = 62913
Step 68: 62913 + 939 = 63852
Step 69: 63852 + 939 = 64791
Step 70: 64791 + 939 = 65730
Step 71: 65730 + 939 = 66669
Step 72: 66669 + 939 = 67608
Step 73: 67608 + 939 = 68547
Step 74: 68547 + 939 = 69486
Step 75: 69486 + 939 = 70425
Step 76: 70425 + 939 = 71364
Step 77: 71364 + 939 = 72303
Step 78: 72303 + 939 = 73242
Step 79: 73242 + 939 = 74181
Step 80: 74181 + 939 = 75120
Step 81: 75120 + 939 = 76059
Step 82: 76059 + 939 = 76998
Step 83: 76998 + 939 = 77937
Step 84: 77937 + 939 = 78876
Step 85: 78876 + 939 = 79815
Step 86: 79815 + 939 = 80754
Step 87: 80754 + 939 = 81693
Step 88: 81693 + 939 = 82632
Step 89: 82632 + 939 = 83571
Step 90: 83571 + 939 = 84510
Step 91: 84510 + 939 = 85449
Step 92: 85449 + 939 = 86388
Step 93: 86388 + 939 = 87327
Step 94: 87327 + 939 = 88266
Step 95: 88266 + 939 = 89205
Step 96: 89205 + 939 = 90144
Step 97: 90144 + 939 = 91083
Step 98: 91083 + 939 = 92022
Step 99: 92022 + 939 = 92961
Step 100: 92961 + 939 = 93900
Step 101: 93900 + 939 = 94839
Step 102: 94839 + 939 = 95778
Step 103: 95778 + 939 = 96717
Step 104: 96717 + 939 = 97656
Step 105: 97656 + 939 = 98595
Step 106: 98595 + 939 = 99534
Step 107: 99534 + 939 = 100473
Step 108: 100473 + 939 = 101412
Step 109: 101412 + 939 = 102351
Step 110: 102351 + 939 = 103290
Step 111: 103290 + 939 = 104229
Step 112: 104229 + 939 = 105168
Step 113: 105168 + 939 = 106107
Step 114: 106107 + 939 = 107046
Step 115: 107046 + 939 = 107985
Step 116: 107985 + 939 = 108924
Step 117: 108924 + 939 = 109863
Step 118: 109863 + 939 = 110802
Step 119: 110802 + 939 = 111741
Step 120: 111741 + 939 = 112680
Step 121: 112680 + 939 = 113619
Step 122: 113619 + 939 = 114558
Step 123: 114558 + 939 = 115497
Step 124: 115497 + 939 = 116436
Step 125: 116436 + 939 = 117375
Step 126: 117375 + 939 = 118314
Step 127: 118314 + 939 = 119253
Step 128: 119253 + 939 = 120192
Step 129: 120192 + 939 = 121131
Step 130: 121131 + 939 = 122070
Step 131: 122070 + 939 = 123009
Step 132: 123009 + 939 = 123948
Step 133: 123948 + 939 = 124887
Step 134: 124887 + 939 = 125826
Step 135: 125826 + 939 = 126765
Step 136: 126765 + 939 = 127704
Step 137: 127704 + 939 = 128643
Step 138: 128643 + 939 = 129582
Step 139: 129582 + 939 = 130521
Step 140: 130521 + 939 = 131460
Step 141: 131460 + 939 = 132399
Step 142: 132399 + 939 = 133338
Step 143: 133338 + 939 = 134277
Step 144: 134277 + 939 = 135216
Step 145: 135216 + 939 = 136155
Step 146: 136155 + 939 = 137094
Step 147: 137094 + 939 = 138033
Step 148: 138033 + 939 = 138972
Step 149: 138972 + 939 = 139911
Step 150: 139911 + 939 = 140850
Step 151: 140850 + 939 = 141789
Step 152: 141789 + 939 = 142728
Step 153: 142728 + 939 = 143667
Step 154: 143667 + 939 = 144606
Step 155: 144606 + 939 = 145545
Step 156: 145545 + 939 = 146484
Step 157: 146484 + 939 = 147423
Step 158: 147423 + 939 = 148362
Step 159: 148362 + 939 = 149301
Step 160: 149301 + 939 = 150240
Step 161: 150240 + 939 = 151179
Step 162: 151179 + 939 = 152118
Step 163: 152118 + 939 = 153057
Step 164: 153057 + 939 = 153996
Step 165: 153996 + 939 = 154935
Step 166: 154935 + 939 = 155874
Step 167: 155874 + 939 = 156813
Step 168: 156813 + 939 = 157752
Step 169: 157752 + 939 = 158691
Step 170: 158691 + 939 = 159630
Step 171: 159630 + 939 = 160569
Step 172: 160569 + 939 = 161508
Step 173: 161508 + 939 = 162447
Step 174: 162447 + 939 = 163386
Step 175: 163386 + 939 = 164325
Step 176: 164325 + 939 = 165264
Step 177: 165264 + 939 = 166203
Step 178: 166203 + 939 = 167142
Step 179: 167142 + 939 = 168081
Step 180: 168081 + 939 = 169020
Step 181: 169020 + 939 = 169959
Step 182: 169959 + 939 = 170898
Step 183: 170898 + 939 = 171837
Step 184: 171837 + 939 = 172776
Step 185: 172776 + 939 = 173715
Step 186: 173715 + 939 = 174654
Step 187: 174654 + 939 = 175593
Step 188: 175593 + 939 = 176532
Step 189: 176532 + 939 = 177471
Step 190: 177471 + 939 = 178410
Step 191: 178410 + 939 = 179349
Step 192: 179349 + 939 = 180288
Step 193: 180288 + 939 = 181227
Step 194: 181227 + 939 = 182166
Step 195: 182166 + 939 = 183105
Step 196: 183105 + 939 = 184044
Step 197: 184044 + 939 = 184983
Step 198: 184983 + 939 = 185922
Step 199: 185922 + 939 = 186861
Step 200: 186861 + 939 = 187800
Step 201: 187800 + 939 = 188739
Step 202: 188739 + 939 = 189678
Step 203: 189678 + 939 = 190617
Step 204: 190617 + 939 = 191556
Step 205: 191556 + 939 = 192495
Step 206: 192495 + 939 = 193434
Step 207: 193434 + 939 = 194373
Step 208: 194373 + 939 = 195312
Step 209: 195312 + 939 = 196251
Step 210: 196251 + 939 = 197190
Step 211: 197190 + 939 = 198129
Step 212: 198129 + 939 = 199068
Step 213: 199068 + 939 = 200007
Step 214: 200007 + 939 = 200946
Step 215: 200946 + 939 = 201885
Step 216: 201885 + 939 = 202824
Step 217: 202824 + 939 = 203763
Step 218: 203763 + 939 = 204702
Step 219: 204702 + 939 = 205641
Step 220: 205641 + 939 = 206580
Step 221: 206580 + 939 = 207519
Step 222: 207519 + 939 = 208458
Step 223: 208458 + 939 = 209397
Step 224: 209397 + 939 = 210336
Step 225: 210336 + 939 = 211275
Step 226: 211275 + 939 = 212214
Step 227: 212214 + 939 = 213153
Step 228: 213153 + 939 = 214092
Step 229: 214092 + 939 = 215031
Step 230: 215031 + 939 = 215970
Step 231: 215970 + 939 = 216909
Step 232: 216909 + 939 = 217848
Step 233: 217848 + 939 = 218787
Step 234: 218787 + 939 = 219726
Step 235: 219726 + 939 = 220665
Step 236: 220665 + 939 = 221604
Step 237: 221604 + 939 = 222543
Step 238: 222543 + 939 = 223482
Step 239: 223482 + 939 = 224421
Step 240: 224421 + 939 = 225360
Step 241: 225360 + 939 = 226299
Step 242: 226299 + 939 = 227238
Step 243: 227238 + 939 = 228177
Step 244: 228177 + 939 = 229116
Step 245: 229116 + 939 = 230055
Step 246: 230055 + 939 = 230994
Step 247: 230994 + 939 = 231933
Step 248: 231933 + 939 = 232872
Step 249: 232872 + 939 = 233811
Step 250: 233811 + 939 = 234750
Step 251: 234750 + 939 = 235689
Step 252: 235689 + 939 = 236628
Step 253: 236628 + 939 = 237567
Step 254: 237567 + 939 = 238506
Step 255: 238506 + 939 = 239445
Step 256: 239445 + 939 = 240384
Step 257: 240384 + 939 = 241323
Step 258: 241323 + 939 = 242262
Step 259: 242262 + 939 = 243201
Step 260: 243201 + 939 = 244140
Step 261: 244140 + 939 = 245079
Step 262: 245079 + 939 = 246018
Step 263: 246018 + 939 = 246957
Step 264: 246957 + 939 = 247896
Step 265: 247896 + 939 = 248835
Step 266: 248835 + 939 = 249774
Step 267: 249774 + 939 = 250713
Step 268: 250713 + 939 = 251652
Step 269: 251652 + 939 = 252591
Step 270: 252591 + 939 = 253530
Step 271: 253530 + 939 = 254469
Step 272: 254469 + 939 = 255408
Step 273: 255408 + 939 = 256347
Step 274: 256347 + 939 = 257286
Step 275: 257286 + 939 = 258225
Step 276: 258225 + 939 = 259164
Step 277: 259164 + 939 = 260103
Step 278: 260103 + 939 = 261042
Step 279: 261042 + 939 = 261981
Step 280: 261981 + 939 = 262920
Step 281: 262920 + 939 = 263859
Step 282: 263859 + 939 = 264798
Step 283: 264798 + 939 = 265737
Step 284: 265737 + 939 = 266676
Step 285: 266676 + 939 = 267615
Step 286: 267615 + 939 = 268554
Step 287: 268554 + 939 = 269493
Step 288: 269493 + 939 = 270432
Step 289: 270432 + 939 = 271371
Step 290: 271371 + 939 = 272310
Step 291: 272310 + 939 = 273249
Step 292: 273249 + 939 = 274188
Step 293: 274188 + 939 = 275127
Step 294: 275127 + 939 = 276066
Step 295: 276066 + 939 = 277005
Step 296: 277005 + 939 = 277944
Step 297: 277944 + 939 = 278883
Step 298: 278883 + 939 = 279822
Step 299: 279822 + 939 = 280761
Step 300: 280761 + 939 = 281700
Step 301: 281700 + 939 = 282639
Step 302: 282639 + 939 = 283578
Step 303: 283578 + 939 = 284517
Step 304: 284517 + 939 = 285456
Step 305: 285456 + 939 = 286395
Step 306: 286395 + 939 = 287334
Step 307: 287334 + 939 = 288273
Step 308: 288273 + 939 = 289212
Step 309: 289212 + 939 = 290151
Step 310: 290151 + 939 = 291090
Step 311: 291090 + 939 = 292029
Step 312: 292029 + 939 = 292968
Step 313: 292968 + 939 = 293907
Step 314: 293907 + 939 = 294846
Step 315: 294846 + 939 = 295785
Step 316: 295785 + 939 = 296724
Step 317: 296724 + 939 = 297663
Step 318: 297663 + 939 = 298602
Step 319: 298602 + 939 = 299541
Step 320: 299541 + 939 = 300480
Step 321: 300480 + 939 = 301419
Step 322: 301419 + 939 = 302358
Step 323: 302358 + 939 = 303297
Step 324: 303297 + 939 = 304236
Step 325: 304236 + 939 = 305175
Step 326: 305175 + 939 = 306114
Step 327: 306114 + 939 = 307053
Step 328: 307053 + 939 = 307992
Step 329: 307992 + 939 = 308931
Step 330: 308931 + 939 = 309870
Step 331: 309870 + 939 = 310809
Step 332: 310809 + 939 = 311748
Step 333: 311748 + 939 = 312687
Step 334: 312687 + 939 = 313626
Step 335: 313626 + 939 = 314565
Step 336: 314565 + 939 = 315504
Step 337: 315504 + 939 = 316443
Step 338: 316443 + 939 = 317382
Step 339: 317382 + 939 = 318321
Step 340: 318321 + 939 = 319260
Step 341: 319260 + 939 = 320199
Step 342: 320199 + 939 = 321138
Step 343: 321138 + 939 = 322077
Step 344: 322077 + 939 = 323016
Step 345: 323016 + 939 = 323955

So, 939*345 = 323955