Alright, let's work through 40571427 times 18680135 step by step
40571427 × 18680135 = 18680135 × (40571427)
+ 18680135 × 7 giving us 130760945
+ 18680135 × 20 what gives us 373602700
+ 18680135 × 400 that is equal 7472054000
+ 18680135 × 1000 that equals 18680135000
+ 18680135 × 70000 that is equal 1307609450000
+ 18680135 × 500000 yielding 9340067500000
+ 18680135 × 0000000 producing 0
+ 18680135 × 40000000 which equals 747205400000000

= 757879733502645
