Alright, let's solve this math problem step by step. First, we have the number 789. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 354. So, we're going to take the number 789 and add it to itself 354 times.
Step 1: 0 + 789 = 789
Step 2: 789 + 789 = 1578
Step 3: 1578 + 789 = 2367
Step 4: 2367 + 789 = 3156
Step 5: 3156 + 789 = 3945
Step 6: 3945 + 789 = 4734
Step 7: 4734 + 789 = 5523
Step 8: 5523 + 789 = 6312
Step 9: 6312 + 789 = 7101
Step 10: 7101 + 789 = 7890
Step 11: 7890 + 789 = 8679
Step 12: 8679 + 789 = 9468
Step 13: 9468 + 789 = 10257
Step 14: 10257 + 789 = 11046
Step 15: 11046 + 789 = 11835
Step 16: 11835 + 789 = 12624
Step 17: 12624 + 789 = 13413
Step 18: 13413 + 789 = 14202
Step 19: 14202 + 789 = 14991
Step 20: 14991 + 789 = 15780
Step 21: 15780 + 789 = 16569
Step 22: 16569 + 789 = 17358
Step 23: 17358 + 789 = 18147
Step 24: 18147 + 789 = 18936
Step 25: 18936 + 789 = 19725
Step 26: 19725 + 789 = 20514
Step 27: 20514 + 789 = 21303
Step 28: 21303 + 789 = 22092
Step 29: 22092 + 789 = 22881
Step 30: 22881 + 789 = 23670
Step 31: 23670 + 789 = 24459
Step 32: 24459 + 789 = 25248
Step 33: 25248 + 789 = 26037
Step 34: 26037 + 789 = 26826
Step 35: 26826 + 789 = 27615
Step 36: 27615 + 789 = 28404
Step 37: 28404 + 789 = 29193
Step 38: 29193 + 789 = 29982
Step 39: 29982 + 789 = 30771
Step 40: 30771 + 789 = 31560
Step 41: 31560 + 789 = 32349
Step 42: 32349 + 789 = 33138
Step 43: 33138 + 789 = 33927
Step 44: 33927 + 789 = 34716
Step 45: 34716 + 789 = 35505
Step 46: 35505 + 789 = 36294
Step 47: 36294 + 789 = 37083
Step 48: 37083 + 789 = 37872
Step 49: 37872 + 789 = 38661
Step 50: 38661 + 789 = 39450
Step 51: 39450 + 789 = 40239
Step 52: 40239 + 789 = 41028
Step 53: 41028 + 789 = 41817
Step 54: 41817 + 789 = 42606
Step 55: 42606 + 789 = 43395
Step 56: 43395 + 789 = 44184
Step 57: 44184 + 789 = 44973
Step 58: 44973 + 789 = 45762
Step 59: 45762 + 789 = 46551
Step 60: 46551 + 789 = 47340
Step 61: 47340 + 789 = 48129
Step 62: 48129 + 789 = 48918
Step 63: 48918 + 789 = 49707
Step 64: 49707 + 789 = 50496
Step 65: 50496 + 789 = 51285
Step 66: 51285 + 789 = 52074
Step 67: 52074 + 789 = 52863
Step 68: 52863 + 789 = 53652
Step 69: 53652 + 789 = 54441
Step 70: 54441 + 789 = 55230
Step 71: 55230 + 789 = 56019
Step 72: 56019 + 789 = 56808
Step 73: 56808 + 789 = 57597
Step 74: 57597 + 789 = 58386
Step 75: 58386 + 789 = 59175
Step 76: 59175 + 789 = 59964
Step 77: 59964 + 789 = 60753
Step 78: 60753 + 789 = 61542
Step 79: 61542 + 789 = 62331
Step 80: 62331 + 789 = 63120
Step 81: 63120 + 789 = 63909
Step 82: 63909 + 789 = 64698
Step 83: 64698 + 789 = 65487
Step 84: 65487 + 789 = 66276
Step 85: 66276 + 789 = 67065
Step 86: 67065 + 789 = 67854
Step 87: 67854 + 789 = 68643
Step 88: 68643 + 789 = 69432
Step 89: 69432 + 789 = 70221
Step 90: 70221 + 789 = 71010
Step 91: 71010 + 789 = 71799
Step 92: 71799 + 789 = 72588
Step 93: 72588 + 789 = 73377
Step 94: 73377 + 789 = 74166
Step 95: 74166 + 789 = 74955
Step 96: 74955 + 789 = 75744
Step 97: 75744 + 789 = 76533
Step 98: 76533 + 789 = 77322
Step 99: 77322 + 789 = 78111
Step 100: 78111 + 789 = 78900
Step 101: 78900 + 789 = 79689
Step 102: 79689 + 789 = 80478
Step 103: 80478 + 789 = 81267
Step 104: 81267 + 789 = 82056
Step 105: 82056 + 789 = 82845
Step 106: 82845 + 789 = 83634
Step 107: 83634 + 789 = 84423
Step 108: 84423 + 789 = 85212
Step 109: 85212 + 789 = 86001
Step 110: 86001 + 789 = 86790
Step 111: 86790 + 789 = 87579
Step 112: 87579 + 789 = 88368
Step 113: 88368 + 789 = 89157
Step 114: 89157 + 789 = 89946
Step 115: 89946 + 789 = 90735
Step 116: 90735 + 789 = 91524
Step 117: 91524 + 789 = 92313
Step 118: 92313 + 789 = 93102
Step 119: 93102 + 789 = 93891
Step 120: 93891 + 789 = 94680
Step 121: 94680 + 789 = 95469
Step 122: 95469 + 789 = 96258
Step 123: 96258 + 789 = 97047
Step 124: 97047 + 789 = 97836
Step 125: 97836 + 789 = 98625
Step 126: 98625 + 789 = 99414
Step 127: 99414 + 789 = 100203
Step 128: 100203 + 789 = 100992
Step 129: 100992 + 789 = 101781
Step 130: 101781 + 789 = 102570
Step 131: 102570 + 789 = 103359
Step 132: 103359 + 789 = 104148
Step 133: 104148 + 789 = 104937
Step 134: 104937 + 789 = 105726
Step 135: 105726 + 789 = 106515
Step 136: 106515 + 789 = 107304
Step 137: 107304 + 789 = 108093
Step 138: 108093 + 789 = 108882
Step 139: 108882 + 789 = 109671
Step 140: 109671 + 789 = 110460
Step 141: 110460 + 789 = 111249
Step 142: 111249 + 789 = 112038
Step 143: 112038 + 789 = 112827
Step 144: 112827 + 789 = 113616
Step 145: 113616 + 789 = 114405
Step 146: 114405 + 789 = 115194
Step 147: 115194 + 789 = 115983
Step 148: 115983 + 789 = 116772
Step 149: 116772 + 789 = 117561
Step 150: 117561 + 789 = 118350
Step 151: 118350 + 789 = 119139
Step 152: 119139 + 789 = 119928
Step 153: 119928 + 789 = 120717
Step 154: 120717 + 789 = 121506
Step 155: 121506 + 789 = 122295
Step 156: 122295 + 789 = 123084
Step 157: 123084 + 789 = 123873
Step 158: 123873 + 789 = 124662
Step 159: 124662 + 789 = 125451
Step 160: 125451 + 789 = 126240
Step 161: 126240 + 789 = 127029
Step 162: 127029 + 789 = 127818
Step 163: 127818 + 789 = 128607
Step 164: 128607 + 789 = 129396
Step 165: 129396 + 789 = 130185
Step 166: 130185 + 789 = 130974
Step 167: 130974 + 789 = 131763
Step 168: 131763 + 789 = 132552
Step 169: 132552 + 789 = 133341
Step 170: 133341 + 789 = 134130
Step 171: 134130 + 789 = 134919
Step 172: 134919 + 789 = 135708
Step 173: 135708 + 789 = 136497
Step 174: 136497 + 789 = 137286
Step 175: 137286 + 789 = 138075
Step 176: 138075 + 789 = 138864
Step 177: 138864 + 789 = 139653
Step 178: 139653 + 789 = 140442
Step 179: 140442 + 789 = 141231
Step 180: 141231 + 789 = 142020
Step 181: 142020 + 789 = 142809
Step 182: 142809 + 789 = 143598
Step 183: 143598 + 789 = 144387
Step 184: 144387 + 789 = 145176
Step 185: 145176 + 789 = 145965
Step 186: 145965 + 789 = 146754
Step 187: 146754 + 789 = 147543
Step 188: 147543 + 789 = 148332
Step 189: 148332 + 789 = 149121
Step 190: 149121 + 789 = 149910
Step 191: 149910 + 789 = 150699
Step 192: 150699 + 789 = 151488
Step 193: 151488 + 789 = 152277
Step 194: 152277 + 789 = 153066
Step 195: 153066 + 789 = 153855
Step 196: 153855 + 789 = 154644
Step 197: 154644 + 789 = 155433
Step 198: 155433 + 789 = 156222
Step 199: 156222 + 789 = 157011
Step 200: 157011 + 789 = 157800
Step 201: 157800 + 789 = 158589
Step 202: 158589 + 789 = 159378
Step 203: 159378 + 789 = 160167
Step 204: 160167 + 789 = 160956
Step 205: 160956 + 789 = 161745
Step 206: 161745 + 789 = 162534
Step 207: 162534 + 789 = 163323
Step 208: 163323 + 789 = 164112
Step 209: 164112 + 789 = 164901
Step 210: 164901 + 789 = 165690
Step 211: 165690 + 789 = 166479
Step 212: 166479 + 789 = 167268
Step 213: 167268 + 789 = 168057
Step 214: 168057 + 789 = 168846
Step 215: 168846 + 789 = 169635
Step 216: 169635 + 789 = 170424
Step 217: 170424 + 789 = 171213
Step 218: 171213 + 789 = 172002
Step 219: 172002 + 789 = 172791
Step 220: 172791 + 789 = 173580
Step 221: 173580 + 789 = 174369
Step 222: 174369 + 789 = 175158
Step 223: 175158 + 789 = 175947
Step 224: 175947 + 789 = 176736
Step 225: 176736 + 789 = 177525
Step 226: 177525 + 789 = 178314
Step 227: 178314 + 789 = 179103
Step 228: 179103 + 789 = 179892
Step 229: 179892 + 789 = 180681
Step 230: 180681 + 789 = 181470
Step 231: 181470 + 789 = 182259
Step 232: 182259 + 789 = 183048
Step 233: 183048 + 789 = 183837
Step 234: 183837 + 789 = 184626
Step 235: 184626 + 789 = 185415
Step 236: 185415 + 789 = 186204
Step 237: 186204 + 789 = 186993
Step 238: 186993 + 789 = 187782
Step 239: 187782 + 789 = 188571
Step 240: 188571 + 789 = 189360
Step 241: 189360 + 789 = 190149
Step 242: 190149 + 789 = 190938
Step 243: 190938 + 789 = 191727
Step 244: 191727 + 789 = 192516
Step 245: 192516 + 789 = 193305
Step 246: 193305 + 789 = 194094
Step 247: 194094 + 789 = 194883
Step 248: 194883 + 789 = 195672
Step 249: 195672 + 789 = 196461
Step 250: 196461 + 789 = 197250
Step 251: 197250 + 789 = 198039
Step 252: 198039 + 789 = 198828
Step 253: 198828 + 789 = 199617
Step 254: 199617 + 789 = 200406
Step 255: 200406 + 789 = 201195
Step 256: 201195 + 789 = 201984
Step 257: 201984 + 789 = 202773
Step 258: 202773 + 789 = 203562
Step 259: 203562 + 789 = 204351
Step 260: 204351 + 789 = 205140
Step 261: 205140 + 789 = 205929
Step 262: 205929 + 789 = 206718
Step 263: 206718 + 789 = 207507
Step 264: 207507 + 789 = 208296
Step 265: 208296 + 789 = 209085
Step 266: 209085 + 789 = 209874
Step 267: 209874 + 789 = 210663
Step 268: 210663 + 789 = 211452
Step 269: 211452 + 789 = 212241
Step 270: 212241 + 789 = 213030
Step 271: 213030 + 789 = 213819
Step 272: 213819 + 789 = 214608
Step 273: 214608 + 789 = 215397
Step 274: 215397 + 789 = 216186
Step 275: 216186 + 789 = 216975
Step 276: 216975 + 789 = 217764
Step 277: 217764 + 789 = 218553
Step 278: 218553 + 789 = 219342
Step 279: 219342 + 789 = 220131
Step 280: 220131 + 789 = 220920
Step 281: 220920 + 789 = 221709
Step 282: 221709 + 789 = 222498
Step 283: 222498 + 789 = 223287
Step 284: 223287 + 789 = 224076
Step 285: 224076 + 789 = 224865
Step 286: 224865 + 789 = 225654
Step 287: 225654 + 789 = 226443
Step 288: 226443 + 789 = 227232
Step 289: 227232 + 789 = 228021
Step 290: 228021 + 789 = 228810
Step 291: 228810 + 789 = 229599
Step 292: 229599 + 789 = 230388
Step 293: 230388 + 789 = 231177
Step 294: 231177 + 789 = 231966
Step 295: 231966 + 789 = 232755
Step 296: 232755 + 789 = 233544
Step 297: 233544 + 789 = 234333
Step 298: 234333 + 789 = 235122
Step 299: 235122 + 789 = 235911
Step 300: 235911 + 789 = 236700
Step 301: 236700 + 789 = 237489
Step 302: 237489 + 789 = 238278
Step 303: 238278 + 789 = 239067
Step 304: 239067 + 789 = 239856
Step 305: 239856 + 789 = 240645
Step 306: 240645 + 789 = 241434
Step 307: 241434 + 789 = 242223
Step 308: 242223 + 789 = 243012
Step 309: 243012 + 789 = 243801
Step 310: 243801 + 789 = 244590
Step 311: 244590 + 789 = 245379
Step 312: 245379 + 789 = 246168
Step 313: 246168 + 789 = 246957
Step 314: 246957 + 789 = 247746
Step 315: 247746 + 789 = 248535
Step 316: 248535 + 789 = 249324
Step 317: 249324 + 789 = 250113
Step 318: 250113 + 789 = 250902
Step 319: 250902 + 789 = 251691
Step 320: 251691 + 789 = 252480
Step 321: 252480 + 789 = 253269
Step 322: 253269 + 789 = 254058
Step 323: 254058 + 789 = 254847
Step 324: 254847 + 789 = 255636
Step 325: 255636 + 789 = 256425
Step 326: 256425 + 789 = 257214
Step 327: 257214 + 789 = 258003
Step 328: 258003 + 789 = 258792
Step 329: 258792 + 789 = 259581
Step 330: 259581 + 789 = 260370
Step 331: 260370 + 789 = 261159
Step 332: 261159 + 789 = 261948
Step 333: 261948 + 789 = 262737
Step 334: 262737 + 789 = 263526
Step 335: 263526 + 789 = 264315
Step 336: 264315 + 789 = 265104
Step 337: 265104 + 789 = 265893
Step 338: 265893 + 789 = 266682
Step 339: 266682 + 789 = 267471
Step 340: 267471 + 789 = 268260
Step 341: 268260 + 789 = 269049
Step 342: 269049 + 789 = 269838
Step 343: 269838 + 789 = 270627
Step 344: 270627 + 789 = 271416
Step 345: 271416 + 789 = 272205
Step 346: 272205 + 789 = 272994
Step 347: 272994 + 789 = 273783
Step 348: 273783 + 789 = 274572
Step 349: 274572 + 789 = 275361
Step 350: 275361 + 789 = 276150
Step 351: 276150 + 789 = 276939
Step 352: 276939 + 789 = 277728
Step 353: 277728 + 789 = 278517
Step 354: 278517 + 789 = 279306

So, 789*354 = 279306