No problem, we've got 87687462 and 47215984 to multiply
87687462 × 47215984 = 47215984 × (87687462)
+ 47215984 × 2 what gives us 94431968
+ 47215984 × 60 giving us 2832959040
+ 47215984 × 400 which equals 18886393600
+ 47215984 × 7000 giving us 330511888000
+ 47215984 × 80000 giving us 3777278720000
+ 47215984 × 600000 giving us 28329590400000
+ 47215984 × 7000000 that is equal 330511888000000
+ 47215984 × 80000000 that equals 3777278720000000

= 4140249802792608
