Without delay, let's solve this. We've got 9 and we will be multiplying it by 342, that is, adding 9 to itself 342 times.
Step 1: 0 + 9 = 9
Step 2: 9 + 9 = 18
Step 3: 18 + 9 = 27
Step 4: 27 + 9 = 36
Step 5: 36 + 9 = 45
Step 6: 45 + 9 = 54
Step 7: 54 + 9 = 63
Step 8: 63 + 9 = 72
Step 9: 72 + 9 = 81
Step 10: 81 + 9 = 90
Step 11: 90 + 9 = 99
Step 12: 99 + 9 = 108
Step 13: 108 + 9 = 117
Step 14: 117 + 9 = 126
Step 15: 126 + 9 = 135
Step 16: 135 + 9 = 144
Step 17: 144 + 9 = 153
Step 18: 153 + 9 = 162
Step 19: 162 + 9 = 171
Step 20: 171 + 9 = 180
Step 21: 180 + 9 = 189
Step 22: 189 + 9 = 198
Step 23: 198 + 9 = 207
Step 24: 207 + 9 = 216
Step 25: 216 + 9 = 225
Step 26: 225 + 9 = 234
Step 27: 234 + 9 = 243
Step 28: 243 + 9 = 252
Step 29: 252 + 9 = 261
Step 30: 261 + 9 = 270
Step 31: 270 + 9 = 279
Step 32: 279 + 9 = 288
Step 33: 288 + 9 = 297
Step 34: 297 + 9 = 306
Step 35: 306 + 9 = 315
Step 36: 315 + 9 = 324
Step 37: 324 + 9 = 333
Step 38: 333 + 9 = 342
Step 39: 342 + 9 = 351
Step 40: 351 + 9 = 360
Step 41: 360 + 9 = 369
Step 42: 369 + 9 = 378
Step 43: 378 + 9 = 387
Step 44: 387 + 9 = 396
Step 45: 396 + 9 = 405
Step 46: 405 + 9 = 414
Step 47: 414 + 9 = 423
Step 48: 423 + 9 = 432
Step 49: 432 + 9 = 441
Step 50: 441 + 9 = 450
Step 51: 450 + 9 = 459
Step 52: 459 + 9 = 468
Step 53: 468 + 9 = 477
Step 54: 477 + 9 = 486
Step 55: 486 + 9 = 495
Step 56: 495 + 9 = 504
Step 57: 504 + 9 = 513
Step 58: 513 + 9 = 522
Step 59: 522 + 9 = 531
Step 60: 531 + 9 = 540
Step 61: 540 + 9 = 549
Step 62: 549 + 9 = 558
Step 63: 558 + 9 = 567
Step 64: 567 + 9 = 576
Step 65: 576 + 9 = 585
Step 66: 585 + 9 = 594
Step 67: 594 + 9 = 603
Step 68: 603 + 9 = 612
Step 69: 612 + 9 = 621
Step 70: 621 + 9 = 630
Step 71: 630 + 9 = 639
Step 72: 639 + 9 = 648
Step 73: 648 + 9 = 657
Step 74: 657 + 9 = 666
Step 75: 666 + 9 = 675
Step 76: 675 + 9 = 684
Step 77: 684 + 9 = 693
Step 78: 693 + 9 = 702
Step 79: 702 + 9 = 711
Step 80: 711 + 9 = 720
Step 81: 720 + 9 = 729
Step 82: 729 + 9 = 738
Step 83: 738 + 9 = 747
Step 84: 747 + 9 = 756
Step 85: 756 + 9 = 765
Step 86: 765 + 9 = 774
Step 87: 774 + 9 = 783
Step 88: 783 + 9 = 792
Step 89: 792 + 9 = 801
Step 90: 801 + 9 = 810
Step 91: 810 + 9 = 819
Step 92: 819 + 9 = 828
Step 93: 828 + 9 = 837
Step 94: 837 + 9 = 846
Step 95: 846 + 9 = 855
Step 96: 855 + 9 = 864
Step 97: 864 + 9 = 873
Step 98: 873 + 9 = 882
Step 99: 882 + 9 = 891
Step 100: 891 + 9 = 900
Step 101: 900 + 9 = 909
Step 102: 909 + 9 = 918
Step 103: 918 + 9 = 927
Step 104: 927 + 9 = 936
Step 105: 936 + 9 = 945
Step 106: 945 + 9 = 954
Step 107: 954 + 9 = 963
Step 108: 963 + 9 = 972
Step 109: 972 + 9 = 981
Step 110: 981 + 9 = 990
Step 111: 990 + 9 = 999
Step 112: 999 + 9 = 1008
Step 113: 1008 + 9 = 1017
Step 114: 1017 + 9 = 1026
Step 115: 1026 + 9 = 1035
Step 116: 1035 + 9 = 1044
Step 117: 1044 + 9 = 1053
Step 118: 1053 + 9 = 1062
Step 119: 1062 + 9 = 1071
Step 120: 1071 + 9 = 1080
Step 121: 1080 + 9 = 1089
Step 122: 1089 + 9 = 1098
Step 123: 1098 + 9 = 1107
Step 124: 1107 + 9 = 1116
Step 125: 1116 + 9 = 1125
Step 126: 1125 + 9 = 1134
Step 127: 1134 + 9 = 1143
Step 128: 1143 + 9 = 1152
Step 129: 1152 + 9 = 1161
Step 130: 1161 + 9 = 1170
Step 131: 1170 + 9 = 1179
Step 132: 1179 + 9 = 1188
Step 133: 1188 + 9 = 1197
Step 134: 1197 + 9 = 1206
Step 135: 1206 + 9 = 1215
Step 136: 1215 + 9 = 1224
Step 137: 1224 + 9 = 1233
Step 138: 1233 + 9 = 1242
Step 139: 1242 + 9 = 1251
Step 140: 1251 + 9 = 1260
Step 141: 1260 + 9 = 1269
Step 142: 1269 + 9 = 1278
Step 143: 1278 + 9 = 1287
Step 144: 1287 + 9 = 1296
Step 145: 1296 + 9 = 1305
Step 146: 1305 + 9 = 1314
Step 147: 1314 + 9 = 1323
Step 148: 1323 + 9 = 1332
Step 149: 1332 + 9 = 1341
Step 150: 1341 + 9 = 1350
Step 151: 1350 + 9 = 1359
Step 152: 1359 + 9 = 1368
Step 153: 1368 + 9 = 1377
Step 154: 1377 + 9 = 1386
Step 155: 1386 + 9 = 1395
Step 156: 1395 + 9 = 1404
Step 157: 1404 + 9 = 1413
Step 158: 1413 + 9 = 1422
Step 159: 1422 + 9 = 1431
Step 160: 1431 + 9 = 1440
Step 161: 1440 + 9 = 1449
Step 162: 1449 + 9 = 1458
Step 163: 1458 + 9 = 1467
Step 164: 1467 + 9 = 1476
Step 165: 1476 + 9 = 1485
Step 166: 1485 + 9 = 1494
Step 167: 1494 + 9 = 1503
Step 168: 1503 + 9 = 1512
Step 169: 1512 + 9 = 1521
Step 170: 1521 + 9 = 1530
Step 171: 1530 + 9 = 1539
Step 172: 1539 + 9 = 1548
Step 173: 1548 + 9 = 1557
Step 174: 1557 + 9 = 1566
Step 175: 1566 + 9 = 1575
Step 176: 1575 + 9 = 1584
Step 177: 1584 + 9 = 1593
Step 178: 1593 + 9 = 1602
Step 179: 1602 + 9 = 1611
Step 180: 1611 + 9 = 1620
Step 181: 1620 + 9 = 1629
Step 182: 1629 + 9 = 1638
Step 183: 1638 + 9 = 1647
Step 184: 1647 + 9 = 1656
Step 185: 1656 + 9 = 1665
Step 186: 1665 + 9 = 1674
Step 187: 1674 + 9 = 1683
Step 188: 1683 + 9 = 1692
Step 189: 1692 + 9 = 1701
Step 190: 1701 + 9 = 1710
Step 191: 1710 + 9 = 1719
Step 192: 1719 + 9 = 1728
Step 193: 1728 + 9 = 1737
Step 194: 1737 + 9 = 1746
Step 195: 1746 + 9 = 1755
Step 196: 1755 + 9 = 1764
Step 197: 1764 + 9 = 1773
Step 198: 1773 + 9 = 1782
Step 199: 1782 + 9 = 1791
Step 200: 1791 + 9 = 1800
Step 201: 1800 + 9 = 1809
Step 202: 1809 + 9 = 1818
Step 203: 1818 + 9 = 1827
Step 204: 1827 + 9 = 1836
Step 205: 1836 + 9 = 1845
Step 206: 1845 + 9 = 1854
Step 207: 1854 + 9 = 1863
Step 208: 1863 + 9 = 1872
Step 209: 1872 + 9 = 1881
Step 210: 1881 + 9 = 1890
Step 211: 1890 + 9 = 1899
Step 212: 1899 + 9 = 1908
Step 213: 1908 + 9 = 1917
Step 214: 1917 + 9 = 1926
Step 215: 1926 + 9 = 1935
Step 216: 1935 + 9 = 1944
Step 217: 1944 + 9 = 1953
Step 218: 1953 + 9 = 1962
Step 219: 1962 + 9 = 1971
Step 220: 1971 + 9 = 1980
Step 221: 1980 + 9 = 1989
Step 222: 1989 + 9 = 1998
Step 223: 1998 + 9 = 2007
Step 224: 2007 + 9 = 2016
Step 225: 2016 + 9 = 2025
Step 226: 2025 + 9 = 2034
Step 227: 2034 + 9 = 2043
Step 228: 2043 + 9 = 2052
Step 229: 2052 + 9 = 2061
Step 230: 2061 + 9 = 2070
Step 231: 2070 + 9 = 2079
Step 232: 2079 + 9 = 2088
Step 233: 2088 + 9 = 2097
Step 234: 2097 + 9 = 2106
Step 235: 2106 + 9 = 2115
Step 236: 2115 + 9 = 2124
Step 237: 2124 + 9 = 2133
Step 238: 2133 + 9 = 2142
Step 239: 2142 + 9 = 2151
Step 240: 2151 + 9 = 2160
Step 241: 2160 + 9 = 2169
Step 242: 2169 + 9 = 2178
Step 243: 2178 + 9 = 2187
Step 244: 2187 + 9 = 2196
Step 245: 2196 + 9 = 2205
Step 246: 2205 + 9 = 2214
Step 247: 2214 + 9 = 2223
Step 248: 2223 + 9 = 2232
Step 249: 2232 + 9 = 2241
Step 250: 2241 + 9 = 2250
Step 251: 2250 + 9 = 2259
Step 252: 2259 + 9 = 2268
Step 253: 2268 + 9 = 2277
Step 254: 2277 + 9 = 2286
Step 255: 2286 + 9 = 2295
Step 256: 2295 + 9 = 2304
Step 257: 2304 + 9 = 2313
Step 258: 2313 + 9 = 2322
Step 259: 2322 + 9 = 2331
Step 260: 2331 + 9 = 2340
Step 261: 2340 + 9 = 2349
Step 262: 2349 + 9 = 2358
Step 263: 2358 + 9 = 2367
Step 264: 2367 + 9 = 2376
Step 265: 2376 + 9 = 2385
Step 266: 2385 + 9 = 2394
Step 267: 2394 + 9 = 2403
Step 268: 2403 + 9 = 2412
Step 269: 2412 + 9 = 2421
Step 270: 2421 + 9 = 2430
Step 271: 2430 + 9 = 2439
Step 272: 2439 + 9 = 2448
Step 273: 2448 + 9 = 2457
Step 274: 2457 + 9 = 2466
Step 275: 2466 + 9 = 2475
Step 276: 2475 + 9 = 2484
Step 277: 2484 + 9 = 2493
Step 278: 2493 + 9 = 2502
Step 279: 2502 + 9 = 2511
Step 280: 2511 + 9 = 2520
Step 281: 2520 + 9 = 2529
Step 282: 2529 + 9 = 2538
Step 283: 2538 + 9 = 2547
Step 284: 2547 + 9 = 2556
Step 285: 2556 + 9 = 2565
Step 286: 2565 + 9 = 2574
Step 287: 2574 + 9 = 2583
Step 288: 2583 + 9 = 2592
Step 289: 2592 + 9 = 2601
Step 290: 2601 + 9 = 2610
Step 291: 2610 + 9 = 2619
Step 292: 2619 + 9 = 2628
Step 293: 2628 + 9 = 2637
Step 294: 2637 + 9 = 2646
Step 295: 2646 + 9 = 2655
Step 296: 2655 + 9 = 2664
Step 297: 2664 + 9 = 2673
Step 298: 2673 + 9 = 2682
Step 299: 2682 + 9 = 2691
Step 300: 2691 + 9 = 2700
Step 301: 2700 + 9 = 2709
Step 302: 2709 + 9 = 2718
Step 303: 2718 + 9 = 2727
Step 304: 2727 + 9 = 2736
Step 305: 2736 + 9 = 2745
Step 306: 2745 + 9 = 2754
Step 307: 2754 + 9 = 2763
Step 308: 2763 + 9 = 2772
Step 309: 2772 + 9 = 2781
Step 310: 2781 + 9 = 2790
Step 311: 2790 + 9 = 2799
Step 312: 2799 + 9 = 2808
Step 313: 2808 + 9 = 2817
Step 314: 2817 + 9 = 2826
Step 315: 2826 + 9 = 2835
Step 316: 2835 + 9 = 2844
Step 317: 2844 + 9 = 2853
Step 318: 2853 + 9 = 2862
Step 319: 2862 + 9 = 2871
Step 320: 2871 + 9 = 2880
Step 321: 2880 + 9 = 2889
Step 322: 2889 + 9 = 2898
Step 323: 2898 + 9 = 2907
Step 324: 2907 + 9 = 2916
Step 325: 2916 + 9 = 2925
Step 326: 2925 + 9 = 2934
Step 327: 2934 + 9 = 2943
Step 328: 2943 + 9 = 2952
Step 329: 2952 + 9 = 2961
Step 330: 2961 + 9 = 2970
Step 331: 2970 + 9 = 2979
Step 332: 2979 + 9 = 2988
Step 333: 2988 + 9 = 2997
Step 334: 2997 + 9 = 3006
Step 335: 3006 + 9 = 3015
Step 336: 3015 + 9 = 3024
Step 337: 3024 + 9 = 3033
Step 338: 3033 + 9 = 3042
Step 339: 3042 + 9 = 3051
Step 340: 3051 + 9 = 3060
Step 341: 3060 + 9 = 3069
Step 342: 3069 + 9 = 3078

So, 9*342 = 3078