Alright, let's work through 54317248 times 64980672 step by step
54317248 × 64980672 = 64980672 × (54317248)
+ 64980672 × 8 what gives us 519845376
+ 64980672 × 40 that is equal 2599226880
+ 64980672 × 200 resulting in 12996134400
+ 64980672 × 7000 what gives us 454864704000
+ 64980672 × 10000 which equals 649806720000
+ 64980672 × 300000 resulting in 19494201600000
+ 64980672 × 4000000 that is equal 259922688000000
+ 64980672 × 50000000 producing 3249033600000000

= 3529571276230656
