Alright, let's work through 18084443 times 80339918 step by step
18084443 × 80339918 = 80339918 × (18084443)
+ 80339918 × 3 giving us 241019754
+ 80339918 × 40 which equals 3213596720
+ 80339918 × 400 giving us 32135967200
+ 80339918 × 4000 producing 321359672000
+ 80339918 × 80000 what gives us 6427193440000
+ 80339918 × 000000 which equals 0
+ 80339918 × 8000000 yielding 642719344000000
+ 80339918 × 10000000 what gives us 803399180000000

= 1452902667695674
