Alright, let's work through 50207721 times 66880433 step by step
50207721 × 66880433 = 66880433 × (50207721)
+ 66880433 × 1 resulting in 66880433
+ 66880433 × 20 producing 1337608660
+ 66880433 × 700 yielding 46816303100
+ 66880433 × 7000 resulting in 468163031000
+ 66880433 × 00000 yielding 0
+ 66880433 × 200000 what gives us 13376086600000
+ 66880433 × 0000000 what gives us 0
+ 66880433 × 50000000 which equals 3344021650000000

= 3357914120423193
