No problem, we've got 99739717 and 78939352 to multiply
99739717 × 78939352 = 78939352 × (99739717)
+ 78939352 × 7 resulting in 552575464
+ 78939352 × 10 that equals 789393520
+ 78939352 × 700 giving us 55257546400
+ 78939352 × 9000 what gives us 710454168000
+ 78939352 × 30000 resulting in 2368180560000
+ 78939352 × 700000 which equals 55257546400000
+ 78939352 × 9000000 that is equal 710454168000000
+ 78939352 × 90000000 giving us 7104541680000000

= 7873388628643384
