Alright, let's work through 18918262 times 80516131 step by step
18918262 × 80516131 = 80516131 × (18918262)
+ 80516131 × 2 which equals 161032262
+ 80516131 × 60 which equals 4830967860
+ 80516131 × 200 resulting in 16103226200
+ 80516131 × 8000 producing 644129048000
+ 80516131 × 10000 producing 805161310000
+ 80516131 × 900000 giving us 72464517900000
+ 80516131 × 8000000 which equals 644129048000000
+ 80516131 × 10000000 that results in 805161310000000

= 1523225261484322
