Alright, let's work through 42257990 times 29796990 step by step
42257990 × 29796990 = 29796990 × (42257990)
+ 29796990 × 0 giving us 0
+ 29796990 × 90 that is equal 2681729100
+ 29796990 × 900 resulting in 26817291000
+ 29796990 × 7000 what gives us 208578930000
+ 29796990 × 50000 producing 1489849500000
+ 29796990 × 200000 yielding 5959398000000
+ 29796990 × 2000000 which equals 59593980000000
+ 29796990 × 40000000 that equals 1191879600000000

= 1259160905450100
