Let's roll up our sleeves and solve this. We have 414 and we're going to multiply it by 64, essentially adding 414 to itself 64 times.
Step 1: 0 + 414 = 414
Step 2: 414 + 414 = 828
Step 3: 828 + 414 = 1242
Step 4: 1242 + 414 = 1656
Step 5: 1656 + 414 = 2070
Step 6: 2070 + 414 = 2484
Step 7: 2484 + 414 = 2898
Step 8: 2898 + 414 = 3312
Step 9: 3312 + 414 = 3726
Step 10: 3726 + 414 = 4140
Step 11: 4140 + 414 = 4554
Step 12: 4554 + 414 = 4968
Step 13: 4968 + 414 = 5382
Step 14: 5382 + 414 = 5796
Step 15: 5796 + 414 = 6210
Step 16: 6210 + 414 = 6624
Step 17: 6624 + 414 = 7038
Step 18: 7038 + 414 = 7452
Step 19: 7452 + 414 = 7866
Step 20: 7866 + 414 = 8280
Step 21: 8280 + 414 = 8694
Step 22: 8694 + 414 = 9108
Step 23: 9108 + 414 = 9522
Step 24: 9522 + 414 = 9936
Step 25: 9936 + 414 = 10350
Step 26: 10350 + 414 = 10764
Step 27: 10764 + 414 = 11178
Step 28: 11178 + 414 = 11592
Step 29: 11592 + 414 = 12006
Step 30: 12006 + 414 = 12420
Step 31: 12420 + 414 = 12834
Step 32: 12834 + 414 = 13248
Step 33: 13248 + 414 = 13662
Step 34: 13662 + 414 = 14076
Step 35: 14076 + 414 = 14490
Step 36: 14490 + 414 = 14904
Step 37: 14904 + 414 = 15318
Step 38: 15318 + 414 = 15732
Step 39: 15732 + 414 = 16146
Step 40: 16146 + 414 = 16560
Step 41: 16560 + 414 = 16974
Step 42: 16974 + 414 = 17388
Step 43: 17388 + 414 = 17802
Step 44: 17802 + 414 = 18216
Step 45: 18216 + 414 = 18630
Step 46: 18630 + 414 = 19044
Step 47: 19044 + 414 = 19458
Step 48: 19458 + 414 = 19872
Step 49: 19872 + 414 = 20286
Step 50: 20286 + 414 = 20700
Step 51: 20700 + 414 = 21114
Step 52: 21114 + 414 = 21528
Step 53: 21528 + 414 = 21942
Step 54: 21942 + 414 = 22356
Step 55: 22356 + 414 = 22770
Step 56: 22770 + 414 = 23184
Step 57: 23184 + 414 = 23598
Step 58: 23598 + 414 = 24012
Step 59: 24012 + 414 = 24426
Step 60: 24426 + 414 = 24840
Step 61: 24840 + 414 = 25254
Step 62: 25254 + 414 = 25668
Step 63: 25668 + 414 = 26082
Step 64: 26082 + 414 = 26496

So, 414*64 = 26496