Alright, let's work through 49717635 times 90497905 step by step
49717635 × 90497905 = 90497905 × (49717635)
+ 90497905 × 5 that is equal 452489525
+ 90497905 × 30 that equals 2714937150
+ 90497905 × 600 that results in 54298743000
+ 90497905 × 7000 yielding 633485335000
+ 90497905 × 10000 that results in 904979050000
+ 90497905 × 700000 that results in 63348533500000
+ 90497905 × 9000000 resulting in 814481145000000
+ 90497905 × 40000000 that results in 3619916200000000

= 4499341809054675
