No problem, we've got 67840540 and 58535431 to multiply
67840540 × 58535431 = 58535431 × (67840540)
+ 58535431 × 0 that results in 0
+ 58535431 × 40 that results in 2341417240
+ 58535431 × 500 that equals 29267715500
+ 58535431 × 0000 that is equal 0
+ 58535431 × 40000 that is equal 2341417240000
+ 58535431 × 800000 producing 46828344800000
+ 58535431 × 7000000 that is equal 409748017000000
+ 58535431 × 60000000 that results in 3512125860000000

= 3971075248172740
