Alright, let's work through 66366903 times 80490962 step by step
66366903 × 80490962 = 80490962 × (66366903)
+ 80490962 × 3 that equals 241472886
+ 80490962 × 00 that results in 0
+ 80490962 × 900 that equals 72441865800
+ 80490962 × 6000 resulting in 482945772000
+ 80490962 × 60000 that equals 4829457720000
+ 80490962 × 300000 yielding 24147288600000
+ 80490962 × 6000000 resulting in 482945772000000
+ 80490962 × 60000000 that results in 4829457720000000

= 5341935867430686
