Alright, let's work through 80479081 times 47300142 step by step
80479081 × 47300142 = 47300142 × (80479081)
+ 47300142 × 1 yielding 47300142
+ 47300142 × 80 that equals 3784011360
+ 47300142 × 000 giving us 0
+ 47300142 × 9000 what gives us 425701278000
+ 47300142 × 70000 giving us 3311009940000
+ 47300142 × 400000 resulting in 18920056800000
+ 47300142 × 0000000 producing 0
+ 47300142 × 80000000 that results in 3784011360000000

= 3806671959329502
