Alright, let's work through 64455286 times 77349776 step by step
64455286 × 77349776 = 77349776 × (64455286)
+ 77349776 × 6 producing 464098656
+ 77349776 × 80 giving us 6187982080
+ 77349776 × 200 producing 15469955200
+ 77349776 × 5000 that equals 386748880000
+ 77349776 × 50000 resulting in 3867488800000
+ 77349776 × 400000 that is equal 30939910400000
+ 77349776 × 4000000 producing 309399104000000
+ 77349776 × 60000000 what gives us 4640986560000000

= 4985601934115936
