Alright, let's solve this math problem step by step. First, we have the number 138. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 324. So, we're going to take the number 138 and add it to itself 324 times.
Step 1: 0 + 138 = 138
Step 2: 138 + 138 = 276
Step 3: 276 + 138 = 414
Step 4: 414 + 138 = 552
Step 5: 552 + 138 = 690
Step 6: 690 + 138 = 828
Step 7: 828 + 138 = 966
Step 8: 966 + 138 = 1104
Step 9: 1104 + 138 = 1242
Step 10: 1242 + 138 = 1380
Step 11: 1380 + 138 = 1518
Step 12: 1518 + 138 = 1656
Step 13: 1656 + 138 = 1794
Step 14: 1794 + 138 = 1932
Step 15: 1932 + 138 = 2070
Step 16: 2070 + 138 = 2208
Step 17: 2208 + 138 = 2346
Step 18: 2346 + 138 = 2484
Step 19: 2484 + 138 = 2622
Step 20: 2622 + 138 = 2760
Step 21: 2760 + 138 = 2898
Step 22: 2898 + 138 = 3036
Step 23: 3036 + 138 = 3174
Step 24: 3174 + 138 = 3312
Step 25: 3312 + 138 = 3450
Step 26: 3450 + 138 = 3588
Step 27: 3588 + 138 = 3726
Step 28: 3726 + 138 = 3864
Step 29: 3864 + 138 = 4002
Step 30: 4002 + 138 = 4140
Step 31: 4140 + 138 = 4278
Step 32: 4278 + 138 = 4416
Step 33: 4416 + 138 = 4554
Step 34: 4554 + 138 = 4692
Step 35: 4692 + 138 = 4830
Step 36: 4830 + 138 = 4968
Step 37: 4968 + 138 = 5106
Step 38: 5106 + 138 = 5244
Step 39: 5244 + 138 = 5382
Step 40: 5382 + 138 = 5520
Step 41: 5520 + 138 = 5658
Step 42: 5658 + 138 = 5796
Step 43: 5796 + 138 = 5934
Step 44: 5934 + 138 = 6072
Step 45: 6072 + 138 = 6210
Step 46: 6210 + 138 = 6348
Step 47: 6348 + 138 = 6486
Step 48: 6486 + 138 = 6624
Step 49: 6624 + 138 = 6762
Step 50: 6762 + 138 = 6900
Step 51: 6900 + 138 = 7038
Step 52: 7038 + 138 = 7176
Step 53: 7176 + 138 = 7314
Step 54: 7314 + 138 = 7452
Step 55: 7452 + 138 = 7590
Step 56: 7590 + 138 = 7728
Step 57: 7728 + 138 = 7866
Step 58: 7866 + 138 = 8004
Step 59: 8004 + 138 = 8142
Step 60: 8142 + 138 = 8280
Step 61: 8280 + 138 = 8418
Step 62: 8418 + 138 = 8556
Step 63: 8556 + 138 = 8694
Step 64: 8694 + 138 = 8832
Step 65: 8832 + 138 = 8970
Step 66: 8970 + 138 = 9108
Step 67: 9108 + 138 = 9246
Step 68: 9246 + 138 = 9384
Step 69: 9384 + 138 = 9522
Step 70: 9522 + 138 = 9660
Step 71: 9660 + 138 = 9798
Step 72: 9798 + 138 = 9936
Step 73: 9936 + 138 = 10074
Step 74: 10074 + 138 = 10212
Step 75: 10212 + 138 = 10350
Step 76: 10350 + 138 = 10488
Step 77: 10488 + 138 = 10626
Step 78: 10626 + 138 = 10764
Step 79: 10764 + 138 = 10902
Step 80: 10902 + 138 = 11040
Step 81: 11040 + 138 = 11178
Step 82: 11178 + 138 = 11316
Step 83: 11316 + 138 = 11454
Step 84: 11454 + 138 = 11592
Step 85: 11592 + 138 = 11730
Step 86: 11730 + 138 = 11868
Step 87: 11868 + 138 = 12006
Step 88: 12006 + 138 = 12144
Step 89: 12144 + 138 = 12282
Step 90: 12282 + 138 = 12420
Step 91: 12420 + 138 = 12558
Step 92: 12558 + 138 = 12696
Step 93: 12696 + 138 = 12834
Step 94: 12834 + 138 = 12972
Step 95: 12972 + 138 = 13110
Step 96: 13110 + 138 = 13248
Step 97: 13248 + 138 = 13386
Step 98: 13386 + 138 = 13524
Step 99: 13524 + 138 = 13662
Step 100: 13662 + 138 = 13800
Step 101: 13800 + 138 = 13938
Step 102: 13938 + 138 = 14076
Step 103: 14076 + 138 = 14214
Step 104: 14214 + 138 = 14352
Step 105: 14352 + 138 = 14490
Step 106: 14490 + 138 = 14628
Step 107: 14628 + 138 = 14766
Step 108: 14766 + 138 = 14904
Step 109: 14904 + 138 = 15042
Step 110: 15042 + 138 = 15180
Step 111: 15180 + 138 = 15318
Step 112: 15318 + 138 = 15456
Step 113: 15456 + 138 = 15594
Step 114: 15594 + 138 = 15732
Step 115: 15732 + 138 = 15870
Step 116: 15870 + 138 = 16008
Step 117: 16008 + 138 = 16146
Step 118: 16146 + 138 = 16284
Step 119: 16284 + 138 = 16422
Step 120: 16422 + 138 = 16560
Step 121: 16560 + 138 = 16698
Step 122: 16698 + 138 = 16836
Step 123: 16836 + 138 = 16974
Step 124: 16974 + 138 = 17112
Step 125: 17112 + 138 = 17250
Step 126: 17250 + 138 = 17388
Step 127: 17388 + 138 = 17526
Step 128: 17526 + 138 = 17664
Step 129: 17664 + 138 = 17802
Step 130: 17802 + 138 = 17940
Step 131: 17940 + 138 = 18078
Step 132: 18078 + 138 = 18216
Step 133: 18216 + 138 = 18354
Step 134: 18354 + 138 = 18492
Step 135: 18492 + 138 = 18630
Step 136: 18630 + 138 = 18768
Step 137: 18768 + 138 = 18906
Step 138: 18906 + 138 = 19044
Step 139: 19044 + 138 = 19182
Step 140: 19182 + 138 = 19320
Step 141: 19320 + 138 = 19458
Step 142: 19458 + 138 = 19596
Step 143: 19596 + 138 = 19734
Step 144: 19734 + 138 = 19872
Step 145: 19872 + 138 = 20010
Step 146: 20010 + 138 = 20148
Step 147: 20148 + 138 = 20286
Step 148: 20286 + 138 = 20424
Step 149: 20424 + 138 = 20562
Step 150: 20562 + 138 = 20700
Step 151: 20700 + 138 = 20838
Step 152: 20838 + 138 = 20976
Step 153: 20976 + 138 = 21114
Step 154: 21114 + 138 = 21252
Step 155: 21252 + 138 = 21390
Step 156: 21390 + 138 = 21528
Step 157: 21528 + 138 = 21666
Step 158: 21666 + 138 = 21804
Step 159: 21804 + 138 = 21942
Step 160: 21942 + 138 = 22080
Step 161: 22080 + 138 = 22218
Step 162: 22218 + 138 = 22356
Step 163: 22356 + 138 = 22494
Step 164: 22494 + 138 = 22632
Step 165: 22632 + 138 = 22770
Step 166: 22770 + 138 = 22908
Step 167: 22908 + 138 = 23046
Step 168: 23046 + 138 = 23184
Step 169: 23184 + 138 = 23322
Step 170: 23322 + 138 = 23460
Step 171: 23460 + 138 = 23598
Step 172: 23598 + 138 = 23736
Step 173: 23736 + 138 = 23874
Step 174: 23874 + 138 = 24012
Step 175: 24012 + 138 = 24150
Step 176: 24150 + 138 = 24288
Step 177: 24288 + 138 = 24426
Step 178: 24426 + 138 = 24564
Step 179: 24564 + 138 = 24702
Step 180: 24702 + 138 = 24840
Step 181: 24840 + 138 = 24978
Step 182: 24978 + 138 = 25116
Step 183: 25116 + 138 = 25254
Step 184: 25254 + 138 = 25392
Step 185: 25392 + 138 = 25530
Step 186: 25530 + 138 = 25668
Step 187: 25668 + 138 = 25806
Step 188: 25806 + 138 = 25944
Step 189: 25944 + 138 = 26082
Step 190: 26082 + 138 = 26220
Step 191: 26220 + 138 = 26358
Step 192: 26358 + 138 = 26496
Step 193: 26496 + 138 = 26634
Step 194: 26634 + 138 = 26772
Step 195: 26772 + 138 = 26910
Step 196: 26910 + 138 = 27048
Step 197: 27048 + 138 = 27186
Step 198: 27186 + 138 = 27324
Step 199: 27324 + 138 = 27462
Step 200: 27462 + 138 = 27600
Step 201: 27600 + 138 = 27738
Step 202: 27738 + 138 = 27876
Step 203: 27876 + 138 = 28014
Step 204: 28014 + 138 = 28152
Step 205: 28152 + 138 = 28290
Step 206: 28290 + 138 = 28428
Step 207: 28428 + 138 = 28566
Step 208: 28566 + 138 = 28704
Step 209: 28704 + 138 = 28842
Step 210: 28842 + 138 = 28980
Step 211: 28980 + 138 = 29118
Step 212: 29118 + 138 = 29256
Step 213: 29256 + 138 = 29394
Step 214: 29394 + 138 = 29532
Step 215: 29532 + 138 = 29670
Step 216: 29670 + 138 = 29808
Step 217: 29808 + 138 = 29946
Step 218: 29946 + 138 = 30084
Step 219: 30084 + 138 = 30222
Step 220: 30222 + 138 = 30360
Step 221: 30360 + 138 = 30498
Step 222: 30498 + 138 = 30636
Step 223: 30636 + 138 = 30774
Step 224: 30774 + 138 = 30912
Step 225: 30912 + 138 = 31050
Step 226: 31050 + 138 = 31188
Step 227: 31188 + 138 = 31326
Step 228: 31326 + 138 = 31464
Step 229: 31464 + 138 = 31602
Step 230: 31602 + 138 = 31740
Step 231: 31740 + 138 = 31878
Step 232: 31878 + 138 = 32016
Step 233: 32016 + 138 = 32154
Step 234: 32154 + 138 = 32292
Step 235: 32292 + 138 = 32430
Step 236: 32430 + 138 = 32568
Step 237: 32568 + 138 = 32706
Step 238: 32706 + 138 = 32844
Step 239: 32844 + 138 = 32982
Step 240: 32982 + 138 = 33120
Step 241: 33120 + 138 = 33258
Step 242: 33258 + 138 = 33396
Step 243: 33396 + 138 = 33534
Step 244: 33534 + 138 = 33672
Step 245: 33672 + 138 = 33810
Step 246: 33810 + 138 = 33948
Step 247: 33948 + 138 = 34086
Step 248: 34086 + 138 = 34224
Step 249: 34224 + 138 = 34362
Step 250: 34362 + 138 = 34500
Step 251: 34500 + 138 = 34638
Step 252: 34638 + 138 = 34776
Step 253: 34776 + 138 = 34914
Step 254: 34914 + 138 = 35052
Step 255: 35052 + 138 = 35190
Step 256: 35190 + 138 = 35328
Step 257: 35328 + 138 = 35466
Step 258: 35466 + 138 = 35604
Step 259: 35604 + 138 = 35742
Step 260: 35742 + 138 = 35880
Step 261: 35880 + 138 = 36018
Step 262: 36018 + 138 = 36156
Step 263: 36156 + 138 = 36294
Step 264: 36294 + 138 = 36432
Step 265: 36432 + 138 = 36570
Step 266: 36570 + 138 = 36708
Step 267: 36708 + 138 = 36846
Step 268: 36846 + 138 = 36984
Step 269: 36984 + 138 = 37122
Step 270: 37122 + 138 = 37260
Step 271: 37260 + 138 = 37398
Step 272: 37398 + 138 = 37536
Step 273: 37536 + 138 = 37674
Step 274: 37674 + 138 = 37812
Step 275: 37812 + 138 = 37950
Step 276: 37950 + 138 = 38088
Step 277: 38088 + 138 = 38226
Step 278: 38226 + 138 = 38364
Step 279: 38364 + 138 = 38502
Step 280: 38502 + 138 = 38640
Step 281: 38640 + 138 = 38778
Step 282: 38778 + 138 = 38916
Step 283: 38916 + 138 = 39054
Step 284: 39054 + 138 = 39192
Step 285: 39192 + 138 = 39330
Step 286: 39330 + 138 = 39468
Step 287: 39468 + 138 = 39606
Step 288: 39606 + 138 = 39744
Step 289: 39744 + 138 = 39882
Step 290: 39882 + 138 = 40020
Step 291: 40020 + 138 = 40158
Step 292: 40158 + 138 = 40296
Step 293: 40296 + 138 = 40434
Step 294: 40434 + 138 = 40572
Step 295: 40572 + 138 = 40710
Step 296: 40710 + 138 = 40848
Step 297: 40848 + 138 = 40986
Step 298: 40986 + 138 = 41124
Step 299: 41124 + 138 = 41262
Step 300: 41262 + 138 = 41400
Step 301: 41400 + 138 = 41538
Step 302: 41538 + 138 = 41676
Step 303: 41676 + 138 = 41814
Step 304: 41814 + 138 = 41952
Step 305: 41952 + 138 = 42090
Step 306: 42090 + 138 = 42228
Step 307: 42228 + 138 = 42366
Step 308: 42366 + 138 = 42504
Step 309: 42504 + 138 = 42642
Step 310: 42642 + 138 = 42780
Step 311: 42780 + 138 = 42918
Step 312: 42918 + 138 = 43056
Step 313: 43056 + 138 = 43194
Step 314: 43194 + 138 = 43332
Step 315: 43332 + 138 = 43470
Step 316: 43470 + 138 = 43608
Step 317: 43608 + 138 = 43746
Step 318: 43746 + 138 = 43884
Step 319: 43884 + 138 = 44022
Step 320: 44022 + 138 = 44160
Step 321: 44160 + 138 = 44298
Step 322: 44298 + 138 = 44436
Step 323: 44436 + 138 = 44574
Step 324: 44574 + 138 = 44712

So, 138*324 = 44712