Alright, let's work through 49998273 times 99943519 step by step
49998273 × 99943519 = 99943519 × (49998273)
+ 99943519 × 3 yielding 299830557
+ 99943519 × 70 that results in 6996046330
+ 99943519 × 200 what gives us 19988703800
+ 99943519 × 8000 which equals 799548152000
+ 99943519 × 90000 what gives us 8994916710000
+ 99943519 × 900000 yielding 89949167100000
+ 99943519 × 9000000 yielding 899491671000000
+ 99943519 × 40000000 producing 3997740760000000

= 4997003347542687
