Alright, let's work through 20683217 times 80964335 step by step
20683217 × 80964335 = 80964335 × (20683217)
+ 80964335 × 7 which equals 566750345
+ 80964335 × 10 which equals 809643350
+ 80964335 × 200 that is equal 16192867000
+ 80964335 × 3000 that results in 242893005000
+ 80964335 × 80000 which equals 6477146800000
+ 80964335 × 600000 giving us 48578601000000
+ 80964335 × 0000000 what gives us 0
+ 80964335 × 20000000 resulting in 1619286700000000

= 1674602910065695
