Alright, let's work through 90504765 times 49704959 step by step
90504765 × 49704959 = 49704959 × (90504765)
+ 49704959 × 5 producing 248524795
+ 49704959 × 60 producing 2982297540
+ 49704959 × 700 what gives us 34793471300
+ 49704959 × 4000 which equals 198819836000
+ 49704959 × 00000 what gives us 0
+ 49704959 × 500000 that is equal 24852479500000
+ 49704959 × 0000000 resulting in 0
+ 49704959 × 90000000 which equals 4473446310000000

= 4498535633629635
