Alright, let's solve this math problem step by step. First, we have the number 456. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 128. So, we're going to take the number 456 and add it to itself 128 times.
Step 1: 0 + 456 = 456
Step 2: 456 + 456 = 912
Step 3: 912 + 456 = 1368
Step 4: 1368 + 456 = 1824
Step 5: 1824 + 456 = 2280
Step 6: 2280 + 456 = 2736
Step 7: 2736 + 456 = 3192
Step 8: 3192 + 456 = 3648
Step 9: 3648 + 456 = 4104
Step 10: 4104 + 456 = 4560
Step 11: 4560 + 456 = 5016
Step 12: 5016 + 456 = 5472
Step 13: 5472 + 456 = 5928
Step 14: 5928 + 456 = 6384
Step 15: 6384 + 456 = 6840
Step 16: 6840 + 456 = 7296
Step 17: 7296 + 456 = 7752
Step 18: 7752 + 456 = 8208
Step 19: 8208 + 456 = 8664
Step 20: 8664 + 456 = 9120
Step 21: 9120 + 456 = 9576
Step 22: 9576 + 456 = 10032
Step 23: 10032 + 456 = 10488
Step 24: 10488 + 456 = 10944
Step 25: 10944 + 456 = 11400
Step 26: 11400 + 456 = 11856
Step 27: 11856 + 456 = 12312
Step 28: 12312 + 456 = 12768
Step 29: 12768 + 456 = 13224
Step 30: 13224 + 456 = 13680
Step 31: 13680 + 456 = 14136
Step 32: 14136 + 456 = 14592
Step 33: 14592 + 456 = 15048
Step 34: 15048 + 456 = 15504
Step 35: 15504 + 456 = 15960
Step 36: 15960 + 456 = 16416
Step 37: 16416 + 456 = 16872
Step 38: 16872 + 456 = 17328
Step 39: 17328 + 456 = 17784
Step 40: 17784 + 456 = 18240
Step 41: 18240 + 456 = 18696
Step 42: 18696 + 456 = 19152
Step 43: 19152 + 456 = 19608
Step 44: 19608 + 456 = 20064
Step 45: 20064 + 456 = 20520
Step 46: 20520 + 456 = 20976
Step 47: 20976 + 456 = 21432
Step 48: 21432 + 456 = 21888
Step 49: 21888 + 456 = 22344
Step 50: 22344 + 456 = 22800
Step 51: 22800 + 456 = 23256
Step 52: 23256 + 456 = 23712
Step 53: 23712 + 456 = 24168
Step 54: 24168 + 456 = 24624
Step 55: 24624 + 456 = 25080
Step 56: 25080 + 456 = 25536
Step 57: 25536 + 456 = 25992
Step 58: 25992 + 456 = 26448
Step 59: 26448 + 456 = 26904
Step 60: 26904 + 456 = 27360
Step 61: 27360 + 456 = 27816
Step 62: 27816 + 456 = 28272
Step 63: 28272 + 456 = 28728
Step 64: 28728 + 456 = 29184
Step 65: 29184 + 456 = 29640
Step 66: 29640 + 456 = 30096
Step 67: 30096 + 456 = 30552
Step 68: 30552 + 456 = 31008
Step 69: 31008 + 456 = 31464
Step 70: 31464 + 456 = 31920
Step 71: 31920 + 456 = 32376
Step 72: 32376 + 456 = 32832
Step 73: 32832 + 456 = 33288
Step 74: 33288 + 456 = 33744
Step 75: 33744 + 456 = 34200
Step 76: 34200 + 456 = 34656
Step 77: 34656 + 456 = 35112
Step 78: 35112 + 456 = 35568
Step 79: 35568 + 456 = 36024
Step 80: 36024 + 456 = 36480
Step 81: 36480 + 456 = 36936
Step 82: 36936 + 456 = 37392
Step 83: 37392 + 456 = 37848
Step 84: 37848 + 456 = 38304
Step 85: 38304 + 456 = 38760
Step 86: 38760 + 456 = 39216
Step 87: 39216 + 456 = 39672
Step 88: 39672 + 456 = 40128
Step 89: 40128 + 456 = 40584
Step 90: 40584 + 456 = 41040
Step 91: 41040 + 456 = 41496
Step 92: 41496 + 456 = 41952
Step 93: 41952 + 456 = 42408
Step 94: 42408 + 456 = 42864
Step 95: 42864 + 456 = 43320
Step 96: 43320 + 456 = 43776
Step 97: 43776 + 456 = 44232
Step 98: 44232 + 456 = 44688
Step 99: 44688 + 456 = 45144
Step 100: 45144 + 456 = 45600
Step 101: 45600 + 456 = 46056
Step 102: 46056 + 456 = 46512
Step 103: 46512 + 456 = 46968
Step 104: 46968 + 456 = 47424
Step 105: 47424 + 456 = 47880
Step 106: 47880 + 456 = 48336
Step 107: 48336 + 456 = 48792
Step 108: 48792 + 456 = 49248
Step 109: 49248 + 456 = 49704
Step 110: 49704 + 456 = 50160
Step 111: 50160 + 456 = 50616
Step 112: 50616 + 456 = 51072
Step 113: 51072 + 456 = 51528
Step 114: 51528 + 456 = 51984
Step 115: 51984 + 456 = 52440
Step 116: 52440 + 456 = 52896
Step 117: 52896 + 456 = 53352
Step 118: 53352 + 456 = 53808
Step 119: 53808 + 456 = 54264
Step 120: 54264 + 456 = 54720
Step 121: 54720 + 456 = 55176
Step 122: 55176 + 456 = 55632
Step 123: 55632 + 456 = 56088
Step 124: 56088 + 456 = 56544
Step 125: 56544 + 456 = 57000
Step 126: 57000 + 456 = 57456
Step 127: 57456 + 456 = 57912
Step 128: 57912 + 456 = 58368

So, 456*128 = 58368