Alright, let's work through 90639742 times 60493337 step by step
90639742 × 60493337 = 60493337 × (90639742)
+ 60493337 × 2 resulting in 120986674
+ 60493337 × 40 which equals 2419733480
+ 60493337 × 700 producing 42345335900
+ 60493337 × 9000 resulting in 544440033000
+ 60493337 × 30000 resulting in 1814800110000
+ 60493337 × 600000 producing 36296002200000
+ 60493337 × 0000000 which equals 0
+ 60493337 × 90000000 which equals 5444400330000000

= 5483100458399054
