No problem, we've got 99990075 and 89912393 to multiply
99990075 × 89912393 = 89912393 × (99990075)
+ 89912393 × 5 that is equal 449561965
+ 89912393 × 70 that results in 6293867510
+ 89912393 × 000 giving us 0
+ 89912393 × 0000 that results in 0
+ 89912393 × 90000 resulting in 8092115370000
+ 89912393 × 900000 which equals 80921153700000
+ 89912393 × 9000000 producing 809211537000000
+ 89912393 × 90000000 yielding 8092115370000000

= 8990346919499475
