Alright, let's solve this math problem step by step. First, we have the number 298. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 138. So, we're going to take the number 298 and add it to itself 138 times.
Step 1: 0 + 298 = 298
Step 2: 298 + 298 = 596
Step 3: 596 + 298 = 894
Step 4: 894 + 298 = 1192
Step 5: 1192 + 298 = 1490
Step 6: 1490 + 298 = 1788
Step 7: 1788 + 298 = 2086
Step 8: 2086 + 298 = 2384
Step 9: 2384 + 298 = 2682
Step 10: 2682 + 298 = 2980
Step 11: 2980 + 298 = 3278
Step 12: 3278 + 298 = 3576
Step 13: 3576 + 298 = 3874
Step 14: 3874 + 298 = 4172
Step 15: 4172 + 298 = 4470
Step 16: 4470 + 298 = 4768
Step 17: 4768 + 298 = 5066
Step 18: 5066 + 298 = 5364
Step 19: 5364 + 298 = 5662
Step 20: 5662 + 298 = 5960
Step 21: 5960 + 298 = 6258
Step 22: 6258 + 298 = 6556
Step 23: 6556 + 298 = 6854
Step 24: 6854 + 298 = 7152
Step 25: 7152 + 298 = 7450
Step 26: 7450 + 298 = 7748
Step 27: 7748 + 298 = 8046
Step 28: 8046 + 298 = 8344
Step 29: 8344 + 298 = 8642
Step 30: 8642 + 298 = 8940
Step 31: 8940 + 298 = 9238
Step 32: 9238 + 298 = 9536
Step 33: 9536 + 298 = 9834
Step 34: 9834 + 298 = 10132
Step 35: 10132 + 298 = 10430
Step 36: 10430 + 298 = 10728
Step 37: 10728 + 298 = 11026
Step 38: 11026 + 298 = 11324
Step 39: 11324 + 298 = 11622
Step 40: 11622 + 298 = 11920
Step 41: 11920 + 298 = 12218
Step 42: 12218 + 298 = 12516
Step 43: 12516 + 298 = 12814
Step 44: 12814 + 298 = 13112
Step 45: 13112 + 298 = 13410
Step 46: 13410 + 298 = 13708
Step 47: 13708 + 298 = 14006
Step 48: 14006 + 298 = 14304
Step 49: 14304 + 298 = 14602
Step 50: 14602 + 298 = 14900
Step 51: 14900 + 298 = 15198
Step 52: 15198 + 298 = 15496
Step 53: 15496 + 298 = 15794
Step 54: 15794 + 298 = 16092
Step 55: 16092 + 298 = 16390
Step 56: 16390 + 298 = 16688
Step 57: 16688 + 298 = 16986
Step 58: 16986 + 298 = 17284
Step 59: 17284 + 298 = 17582
Step 60: 17582 + 298 = 17880
Step 61: 17880 + 298 = 18178
Step 62: 18178 + 298 = 18476
Step 63: 18476 + 298 = 18774
Step 64: 18774 + 298 = 19072
Step 65: 19072 + 298 = 19370
Step 66: 19370 + 298 = 19668
Step 67: 19668 + 298 = 19966
Step 68: 19966 + 298 = 20264
Step 69: 20264 + 298 = 20562
Step 70: 20562 + 298 = 20860
Step 71: 20860 + 298 = 21158
Step 72: 21158 + 298 = 21456
Step 73: 21456 + 298 = 21754
Step 74: 21754 + 298 = 22052
Step 75: 22052 + 298 = 22350
Step 76: 22350 + 298 = 22648
Step 77: 22648 + 298 = 22946
Step 78: 22946 + 298 = 23244
Step 79: 23244 + 298 = 23542
Step 80: 23542 + 298 = 23840
Step 81: 23840 + 298 = 24138
Step 82: 24138 + 298 = 24436
Step 83: 24436 + 298 = 24734
Step 84: 24734 + 298 = 25032
Step 85: 25032 + 298 = 25330
Step 86: 25330 + 298 = 25628
Step 87: 25628 + 298 = 25926
Step 88: 25926 + 298 = 26224
Step 89: 26224 + 298 = 26522
Step 90: 26522 + 298 = 26820
Step 91: 26820 + 298 = 27118
Step 92: 27118 + 298 = 27416
Step 93: 27416 + 298 = 27714
Step 94: 27714 + 298 = 28012
Step 95: 28012 + 298 = 28310
Step 96: 28310 + 298 = 28608
Step 97: 28608 + 298 = 28906
Step 98: 28906 + 298 = 29204
Step 99: 29204 + 298 = 29502
Step 100: 29502 + 298 = 29800
Step 101: 29800 + 298 = 30098
Step 102: 30098 + 298 = 30396
Step 103: 30396 + 298 = 30694
Step 104: 30694 + 298 = 30992
Step 105: 30992 + 298 = 31290
Step 106: 31290 + 298 = 31588
Step 107: 31588 + 298 = 31886
Step 108: 31886 + 298 = 32184
Step 109: 32184 + 298 = 32482
Step 110: 32482 + 298 = 32780
Step 111: 32780 + 298 = 33078
Step 112: 33078 + 298 = 33376
Step 113: 33376 + 298 = 33674
Step 114: 33674 + 298 = 33972
Step 115: 33972 + 298 = 34270
Step 116: 34270 + 298 = 34568
Step 117: 34568 + 298 = 34866
Step 118: 34866 + 298 = 35164
Step 119: 35164 + 298 = 35462
Step 120: 35462 + 298 = 35760
Step 121: 35760 + 298 = 36058
Step 122: 36058 + 298 = 36356
Step 123: 36356 + 298 = 36654
Step 124: 36654 + 298 = 36952
Step 125: 36952 + 298 = 37250
Step 126: 37250 + 298 = 37548
Step 127: 37548 + 298 = 37846
Step 128: 37846 + 298 = 38144
Step 129: 38144 + 298 = 38442
Step 130: 38442 + 298 = 38740
Step 131: 38740 + 298 = 39038
Step 132: 39038 + 298 = 39336
Step 133: 39336 + 298 = 39634
Step 134: 39634 + 298 = 39932
Step 135: 39932 + 298 = 40230
Step 136: 40230 + 298 = 40528
Step 137: 40528 + 298 = 40826
Step 138: 40826 + 298 = 41124

So, 298*138 = 41124