Alright, let's solve this math problem step by step. First, we have the number 64. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 75. So, we're going to take the number 64 and add it to itself 75 times.
Step 1: 0 + 64 = 64
Step 2: 64 + 64 = 128
Step 3: 128 + 64 = 192
Step 4: 192 + 64 = 256
Step 5: 256 + 64 = 320
Step 6: 320 + 64 = 384
Step 7: 384 + 64 = 448
Step 8: 448 + 64 = 512
Step 9: 512 + 64 = 576
Step 10: 576 + 64 = 640
Step 11: 640 + 64 = 704
Step 12: 704 + 64 = 768
Step 13: 768 + 64 = 832
Step 14: 832 + 64 = 896
Step 15: 896 + 64 = 960
Step 16: 960 + 64 = 1024
Step 17: 1024 + 64 = 1088
Step 18: 1088 + 64 = 1152
Step 19: 1152 + 64 = 1216
Step 20: 1216 + 64 = 1280
Step 21: 1280 + 64 = 1344
Step 22: 1344 + 64 = 1408
Step 23: 1408 + 64 = 1472
Step 24: 1472 + 64 = 1536
Step 25: 1536 + 64 = 1600
Step 26: 1600 + 64 = 1664
Step 27: 1664 + 64 = 1728
Step 28: 1728 + 64 = 1792
Step 29: 1792 + 64 = 1856
Step 30: 1856 + 64 = 1920
Step 31: 1920 + 64 = 1984
Step 32: 1984 + 64 = 2048
Step 33: 2048 + 64 = 2112
Step 34: 2112 + 64 = 2176
Step 35: 2176 + 64 = 2240
Step 36: 2240 + 64 = 2304
Step 37: 2304 + 64 = 2368
Step 38: 2368 + 64 = 2432
Step 39: 2432 + 64 = 2496
Step 40: 2496 + 64 = 2560
Step 41: 2560 + 64 = 2624
Step 42: 2624 + 64 = 2688
Step 43: 2688 + 64 = 2752
Step 44: 2752 + 64 = 2816
Step 45: 2816 + 64 = 2880
Step 46: 2880 + 64 = 2944
Step 47: 2944 + 64 = 3008
Step 48: 3008 + 64 = 3072
Step 49: 3072 + 64 = 3136
Step 50: 3136 + 64 = 3200
Step 51: 3200 + 64 = 3264
Step 52: 3264 + 64 = 3328
Step 53: 3328 + 64 = 3392
Step 54: 3392 + 64 = 3456
Step 55: 3456 + 64 = 3520
Step 56: 3520 + 64 = 3584
Step 57: 3584 + 64 = 3648
Step 58: 3648 + 64 = 3712
Step 59: 3712 + 64 = 3776
Step 60: 3776 + 64 = 3840
Step 61: 3840 + 64 = 3904
Step 62: 3904 + 64 = 3968
Step 63: 3968 + 64 = 4032
Step 64: 4032 + 64 = 4096
Step 65: 4096 + 64 = 4160
Step 66: 4160 + 64 = 4224
Step 67: 4224 + 64 = 4288
Step 68: 4288 + 64 = 4352
Step 69: 4352 + 64 = 4416
Step 70: 4416 + 64 = 4480
Step 71: 4480 + 64 = 4544
Step 72: 4544 + 64 = 4608
Step 73: 4608 + 64 = 4672
Step 74: 4672 + 64 = 4736
Step 75: 4736 + 64 = 4800

So, 64*75 = 4800