No problem, we've got 99769398 and 78584725 to multiply
99769398 × 78584725 = 78584725 × (99769398)
+ 78584725 × 8 giving us 628677800
+ 78584725 × 90 what gives us 7072625250
+ 78584725 × 300 what gives us 23575417500
+ 78584725 × 9000 what gives us 707262525000
+ 78584725 × 60000 which equals 4715083500000
+ 78584725 × 700000 that results in 55009307500000
+ 78584725 × 9000000 that is equal 707262525000000
+ 78584725 × 90000000 yielding 7072625250000000

= 7840350705245550
