Alright, let's solve this math problem step by step. First, we have the number 489. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 135. So, we're going to take the number 489 and add it to itself 135 times.
Step 1: 0 + 489 = 489
Step 2: 489 + 489 = 978
Step 3: 978 + 489 = 1467
Step 4: 1467 + 489 = 1956
Step 5: 1956 + 489 = 2445
Step 6: 2445 + 489 = 2934
Step 7: 2934 + 489 = 3423
Step 8: 3423 + 489 = 3912
Step 9: 3912 + 489 = 4401
Step 10: 4401 + 489 = 4890
Step 11: 4890 + 489 = 5379
Step 12: 5379 + 489 = 5868
Step 13: 5868 + 489 = 6357
Step 14: 6357 + 489 = 6846
Step 15: 6846 + 489 = 7335
Step 16: 7335 + 489 = 7824
Step 17: 7824 + 489 = 8313
Step 18: 8313 + 489 = 8802
Step 19: 8802 + 489 = 9291
Step 20: 9291 + 489 = 9780
Step 21: 9780 + 489 = 10269
Step 22: 10269 + 489 = 10758
Step 23: 10758 + 489 = 11247
Step 24: 11247 + 489 = 11736
Step 25: 11736 + 489 = 12225
Step 26: 12225 + 489 = 12714
Step 27: 12714 + 489 = 13203
Step 28: 13203 + 489 = 13692
Step 29: 13692 + 489 = 14181
Step 30: 14181 + 489 = 14670
Step 31: 14670 + 489 = 15159
Step 32: 15159 + 489 = 15648
Step 33: 15648 + 489 = 16137
Step 34: 16137 + 489 = 16626
Step 35: 16626 + 489 = 17115
Step 36: 17115 + 489 = 17604
Step 37: 17604 + 489 = 18093
Step 38: 18093 + 489 = 18582
Step 39: 18582 + 489 = 19071
Step 40: 19071 + 489 = 19560
Step 41: 19560 + 489 = 20049
Step 42: 20049 + 489 = 20538
Step 43: 20538 + 489 = 21027
Step 44: 21027 + 489 = 21516
Step 45: 21516 + 489 = 22005
Step 46: 22005 + 489 = 22494
Step 47: 22494 + 489 = 22983
Step 48: 22983 + 489 = 23472
Step 49: 23472 + 489 = 23961
Step 50: 23961 + 489 = 24450
Step 51: 24450 + 489 = 24939
Step 52: 24939 + 489 = 25428
Step 53: 25428 + 489 = 25917
Step 54: 25917 + 489 = 26406
Step 55: 26406 + 489 = 26895
Step 56: 26895 + 489 = 27384
Step 57: 27384 + 489 = 27873
Step 58: 27873 + 489 = 28362
Step 59: 28362 + 489 = 28851
Step 60: 28851 + 489 = 29340
Step 61: 29340 + 489 = 29829
Step 62: 29829 + 489 = 30318
Step 63: 30318 + 489 = 30807
Step 64: 30807 + 489 = 31296
Step 65: 31296 + 489 = 31785
Step 66: 31785 + 489 = 32274
Step 67: 32274 + 489 = 32763
Step 68: 32763 + 489 = 33252
Step 69: 33252 + 489 = 33741
Step 70: 33741 + 489 = 34230
Step 71: 34230 + 489 = 34719
Step 72: 34719 + 489 = 35208
Step 73: 35208 + 489 = 35697
Step 74: 35697 + 489 = 36186
Step 75: 36186 + 489 = 36675
Step 76: 36675 + 489 = 37164
Step 77: 37164 + 489 = 37653
Step 78: 37653 + 489 = 38142
Step 79: 38142 + 489 = 38631
Step 80: 38631 + 489 = 39120
Step 81: 39120 + 489 = 39609
Step 82: 39609 + 489 = 40098
Step 83: 40098 + 489 = 40587
Step 84: 40587 + 489 = 41076
Step 85: 41076 + 489 = 41565
Step 86: 41565 + 489 = 42054
Step 87: 42054 + 489 = 42543
Step 88: 42543 + 489 = 43032
Step 89: 43032 + 489 = 43521
Step 90: 43521 + 489 = 44010
Step 91: 44010 + 489 = 44499
Step 92: 44499 + 489 = 44988
Step 93: 44988 + 489 = 45477
Step 94: 45477 + 489 = 45966
Step 95: 45966 + 489 = 46455
Step 96: 46455 + 489 = 46944
Step 97: 46944 + 489 = 47433
Step 98: 47433 + 489 = 47922
Step 99: 47922 + 489 = 48411
Step 100: 48411 + 489 = 48900
Step 101: 48900 + 489 = 49389
Step 102: 49389 + 489 = 49878
Step 103: 49878 + 489 = 50367
Step 104: 50367 + 489 = 50856
Step 105: 50856 + 489 = 51345
Step 106: 51345 + 489 = 51834
Step 107: 51834 + 489 = 52323
Step 108: 52323 + 489 = 52812
Step 109: 52812 + 489 = 53301
Step 110: 53301 + 489 = 53790
Step 111: 53790 + 489 = 54279
Step 112: 54279 + 489 = 54768
Step 113: 54768 + 489 = 55257
Step 114: 55257 + 489 = 55746
Step 115: 55746 + 489 = 56235
Step 116: 56235 + 489 = 56724
Step 117: 56724 + 489 = 57213
Step 118: 57213 + 489 = 57702
Step 119: 57702 + 489 = 58191
Step 120: 58191 + 489 = 58680
Step 121: 58680 + 489 = 59169
Step 122: 59169 + 489 = 59658
Step 123: 59658 + 489 = 60147
Step 124: 60147 + 489 = 60636
Step 125: 60636 + 489 = 61125
Step 126: 61125 + 489 = 61614
Step 127: 61614 + 489 = 62103
Step 128: 62103 + 489 = 62592
Step 129: 62592 + 489 = 63081
Step 130: 63081 + 489 = 63570
Step 131: 63570 + 489 = 64059
Step 132: 64059 + 489 = 64548
Step 133: 64548 + 489 = 65037
Step 134: 65037 + 489 = 65526
Step 135: 65526 + 489 = 66015

So, 489*135 = 66015