Alright, let's work through 64414640 times 84746994 step by step
64414640 × 84746994 = 84746994 × (64414640)
+ 84746994 × 0 what gives us 0
+ 84746994 × 40 what gives us 3389879760
+ 84746994 × 600 that results in 50848196400
+ 84746994 × 4000 that equals 338987976000
+ 84746994 × 10000 yielding 847469940000
+ 84746994 × 400000 that equals 33898797600000
+ 84746994 × 4000000 that equals 338987976000000
+ 84746994 × 60000000 producing 5084819640000000

= 5458947109592160
