Alright, let's work through 42407327 times 29103970 step by step
42407327 × 29103970 = 29103970 × (42407327)
+ 29103970 × 7 that equals 203727790
+ 29103970 × 20 resulting in 582079400
+ 29103970 × 300 resulting in 8731191000
+ 29103970 × 7000 resulting in 203727790000
+ 29103970 × 00000 which equals 0
+ 29103970 × 400000 that results in 11641588000000
+ 29103970 × 2000000 producing 58207940000000
+ 29103970 × 40000000 giving us 1164158800000000

= 1234221572788190
