No problem, we've got 87402813 and 56909981 to multiply
87402813 × 56909981 = 56909981 × (87402813)
+ 56909981 × 3 that is equal 170729943
+ 56909981 × 10 resulting in 569099810
+ 56909981 × 800 resulting in 45527984800
+ 56909981 × 2000 which equals 113819962000
+ 56909981 × 00000 giving us 0
+ 56909981 × 400000 producing 22763992400000
+ 56909981 × 7000000 which equals 398369867000000
+ 56909981 × 80000000 that results in 4552798480000000

= 4974092427176553
