No problem, we've got 99900987 and 55725908 to multiply
99900987 × 55725908 = 55725908 × (99900987)
+ 55725908 × 7 yielding 390081356
+ 55725908 × 80 resulting in 4458072640
+ 55725908 × 900 that is equal 50153317200
+ 55725908 × 0000 producing 0
+ 55725908 × 00000 producing 0
+ 55725908 × 900000 that is equal 50153317200000
+ 55725908 × 9000000 producing 501533172000000
+ 55725908 × 90000000 which equals 5015331720000000

= 5567073210671196
