Alright, let's work through 42257044 times 80890182 step by step
42257044 × 80890182 = 80890182 × (42257044)
+ 80890182 × 4 producing 323560728
+ 80890182 × 40 which equals 3235607280
+ 80890182 × 000 what gives us 0
+ 80890182 × 7000 giving us 566231274000
+ 80890182 × 50000 what gives us 4044509100000
+ 80890182 × 200000 that results in 16178036400000
+ 80890182 × 2000000 producing 161780364000000
+ 80890182 × 40000000 producing 3235607280000000

= 3418179979942008
