Alright, let's work through 90604418 times 49900060 step by step
90604418 × 49900060 = 49900060 × (90604418)
+ 49900060 × 8 what gives us 399200480
+ 49900060 × 10 giving us 499000600
+ 49900060 × 400 yielding 19960024000
+ 49900060 × 4000 what gives us 199600240000
+ 49900060 × 00000 which equals 0
+ 49900060 × 600000 giving us 29940036000000
+ 49900060 × 0000000 resulting in 0
+ 49900060 × 90000000 giving us 4491005400000000

= 4521165894465080
