Alright, let's work through 83982896 times 49557264 step by step
83982896 × 49557264 = 49557264 × (83982896)
+ 49557264 × 6 which equals 297343584
+ 49557264 × 90 producing 4460153760
+ 49557264 × 800 producing 39645811200
+ 49557264 × 2000 yielding 99114528000
+ 49557264 × 80000 that results in 3964581120000
+ 49557264 × 900000 yielding 44601537600000
+ 49557264 × 3000000 producing 148671792000000
+ 49557264 × 80000000 what gives us 3964581120000000

= 4161962548556544
