Alright, let's work through 84564869 times 46479439 step by step
84564869 × 46479439 = 46479439 × (84564869)
+ 46479439 × 9 producing 418314951
+ 46479439 × 60 what gives us 2788766340
+ 46479439 × 800 that results in 37183551200
+ 46479439 × 4000 that results in 185917756000
+ 46479439 × 60000 producing 2788766340000
+ 46479439 × 500000 that is equal 23239719500000
+ 46479439 × 4000000 yielding 185917756000000
+ 46479439 × 80000000 that is equal 3718355120000000

= 3930527670228491
