Alright, let's work through 66609409 times 8249789 step by step
66609409 × 8249789 = 8249789 × (66609409)
+ 8249789 × 9 that equals 74248101
+ 8249789 × 00 resulting in 0
+ 8249789 × 400 that equals 3299915600
+ 8249789 × 9000 which equals 74248101000
+ 8249789 × 00000 that results in 0
+ 8249789 × 600000 yielding 4949873400000
+ 8249789 × 6000000 which equals 49498734000000
+ 8249789 × 60000000 that is equal 494987340000000

= 549513569664701
