No problem, we've got 99961248 and 87728383 to multiply
99961248 × 87728383 = 87728383 × (99961248)
+ 87728383 × 8 what gives us 701827064
+ 87728383 × 40 that results in 3509135320
+ 87728383 × 200 yielding 17545676600
+ 87728383 × 1000 that is equal 87728383000
+ 87728383 × 60000 yielding 5263702980000
+ 87728383 × 900000 which equals 78955544700000
+ 87728383 × 9000000 yielding 789555447000000
+ 87728383 × 90000000 which equals 7895554470000000

= 8769438649701984
