Alright, let's work through 64129665 times 54336426 step by step
64129665 × 54336426 = 54336426 × (64129665)
+ 54336426 × 5 that results in 271682130
+ 54336426 × 60 yielding 3260185560
+ 54336426 × 600 yielding 32601855600
+ 54336426 × 9000 yielding 489027834000
+ 54336426 × 20000 that equals 1086728520000
+ 54336426 × 100000 which equals 5433642600000
+ 54336426 × 4000000 giving us 217345704000000
+ 54336426 × 60000000 that results in 3260185560000000

= 3484576796677290
