Alright, let's work through 82931384 times 64996624 step by step
82931384 × 64996624 = 64996624 × (82931384)
+ 64996624 × 4 what gives us 259986496
+ 64996624 × 80 yielding 5199729920
+ 64996624 × 300 producing 19498987200
+ 64996624 × 1000 that is equal 64996624000
+ 64996624 × 30000 what gives us 1949898720000
+ 64996624 × 900000 resulting in 58496961600000
+ 64996624 × 2000000 that results in 129993248000000
+ 64996624 × 80000000 giving us 5199729920000000

= 5390259983647616
