Alright, let's work through 64065601 times 89454356 step by step
64065601 × 89454356 = 89454356 × (64065601)
+ 89454356 × 1 giving us 89454356
+ 89454356 × 00 that equals 0
+ 89454356 × 600 which equals 53672613600
+ 89454356 × 5000 that results in 447271780000
+ 89454356 × 60000 yielding 5367261360000
+ 89454356 × 000000 producing 0
+ 89454356 × 4000000 which equals 357817424000000
+ 89454356 × 60000000 resulting in 5367261360000000

= 5730947079207956
