Let's calculate 8377408 x 99939879
8377408 × 99939879 = 99939879 × (8377408)
+ 99939879 × 8 what gives us 799519032
+ 99939879 × 00 what gives us 0
+ 99939879 × 400 what gives us 39975951600
+ 99939879 × 7000 which equals 699579153000
+ 99939879 × 70000 resulting in 6995791530000
+ 99939879 × 300000 that is equal 29981963700000
+ 99939879 × 8000000 which equals 799519032000000

= 837237141853632
