Alright, let's work through 42214315 times 20302063 step by step
42214315 × 20302063 = 20302063 × (42214315)
+ 20302063 × 5 giving us 101510315
+ 20302063 × 10 which equals 203020630
+ 20302063 × 300 that equals 6090618900
+ 20302063 × 4000 producing 81208252000
+ 20302063 × 10000 producing 203020630000
+ 20302063 × 200000 that is equal 4060412600000
+ 20302063 × 2000000 that equals 40604126000000
+ 20302063 × 40000000 that is equal 812082520000000

= 857037682631845
