No problem, we've got 85709849 and 90243392 to multiply
85709849 × 90243392 = 90243392 × (85709849)
+ 90243392 × 9 that is equal 812190528
+ 90243392 × 40 that is equal 3609735680
+ 90243392 × 800 giving us 72194713600
+ 90243392 × 9000 what gives us 812190528000
+ 90243392 × 00000 producing 0
+ 90243392 × 700000 giving us 63170374400000
+ 90243392 × 5000000 giving us 451216960000000
+ 90243392 × 80000000 which equals 7219471360000000

= 7734747501567808
