Alright, let's work through 8209084 times 79962773 step by step
8209084 × 79962773 = 79962773 × (8209084)
+ 79962773 × 4 what gives us 319851092
+ 79962773 × 80 that equals 6397021840
+ 79962773 × 000 resulting in 0
+ 79962773 × 9000 producing 719664957000
+ 79962773 × 00000 that results in 0
+ 79962773 × 200000 that equals 15992554600000
+ 79962773 × 8000000 that results in 639702184000000

= 656421120429932
