Let's roll up our sleeves and solve this. We have 992 and we're going to multiply it by 64, essentially adding 992 to itself 64 times.
Step 1: 0 + 992 = 992
Step 2: 992 + 992 = 1984
Step 3: 1984 + 992 = 2976
Step 4: 2976 + 992 = 3968
Step 5: 3968 + 992 = 4960
Step 6: 4960 + 992 = 5952
Step 7: 5952 + 992 = 6944
Step 8: 6944 + 992 = 7936
Step 9: 7936 + 992 = 8928
Step 10: 8928 + 992 = 9920
Step 11: 9920 + 992 = 10912
Step 12: 10912 + 992 = 11904
Step 13: 11904 + 992 = 12896
Step 14: 12896 + 992 = 13888
Step 15: 13888 + 992 = 14880
Step 16: 14880 + 992 = 15872
Step 17: 15872 + 992 = 16864
Step 18: 16864 + 992 = 17856
Step 19: 17856 + 992 = 18848
Step 20: 18848 + 992 = 19840
Step 21: 19840 + 992 = 20832
Step 22: 20832 + 992 = 21824
Step 23: 21824 + 992 = 22816
Step 24: 22816 + 992 = 23808
Step 25: 23808 + 992 = 24800
Step 26: 24800 + 992 = 25792
Step 27: 25792 + 992 = 26784
Step 28: 26784 + 992 = 27776
Step 29: 27776 + 992 = 28768
Step 30: 28768 + 992 = 29760
Step 31: 29760 + 992 = 30752
Step 32: 30752 + 992 = 31744
Step 33: 31744 + 992 = 32736
Step 34: 32736 + 992 = 33728
Step 35: 33728 + 992 = 34720
Step 36: 34720 + 992 = 35712
Step 37: 35712 + 992 = 36704
Step 38: 36704 + 992 = 37696
Step 39: 37696 + 992 = 38688
Step 40: 38688 + 992 = 39680
Step 41: 39680 + 992 = 40672
Step 42: 40672 + 992 = 41664
Step 43: 41664 + 992 = 42656
Step 44: 42656 + 992 = 43648
Step 45: 43648 + 992 = 44640
Step 46: 44640 + 992 = 45632
Step 47: 45632 + 992 = 46624
Step 48: 46624 + 992 = 47616
Step 49: 47616 + 992 = 48608
Step 50: 48608 + 992 = 49600
Step 51: 49600 + 992 = 50592
Step 52: 50592 + 992 = 51584
Step 53: 51584 + 992 = 52576
Step 54: 52576 + 992 = 53568
Step 55: 53568 + 992 = 54560
Step 56: 54560 + 992 = 55552
Step 57: 55552 + 992 = 56544
Step 58: 56544 + 992 = 57536
Step 59: 57536 + 992 = 58528
Step 60: 58528 + 992 = 59520
Step 61: 59520 + 992 = 60512
Step 62: 60512 + 992 = 61504
Step 63: 61504 + 992 = 62496
Step 64: 62496 + 992 = 63488

So, 992*64 = 63488