We're going to solve 31720428 multiplied by 42089471
31720428 × 42089471 = 42089471 × (31720428)
+ 42089471 × 8 that equals 336715768
+ 42089471 × 20 that results in 841789420
+ 42089471 × 400 resulting in 16835788400
+ 42089471 × 0000 producing 0
+ 42089471 × 20000 that equals 841789420000
+ 42089471 × 700000 yielding 29462629700000
+ 42089471 × 1000000 which equals 42089471000000
+ 42089471 × 30000000 that equals 1262684130000000

= 1335096034413588
