Alright, let's work through 47742905 times 83577181 step by step
47742905 × 83577181 = 83577181 × (47742905)
+ 83577181 × 5 that is equal 417885905
+ 83577181 × 00 yielding 0
+ 83577181 × 900 producing 75219462900
+ 83577181 × 2000 which equals 167154362000
+ 83577181 × 40000 producing 3343087240000
+ 83577181 × 700000 producing 58504026700000
+ 83577181 × 7000000 that results in 585040267000000
+ 83577181 × 40000000 yielding 3343087240000000

= 3990217412650805
