Alright, let's work through 21424921 times 14361349 step by step
21424921 × 14361349 = 14361349 × (21424921)
+ 14361349 × 1 giving us 14361349
+ 14361349 × 20 that is equal 287226980
+ 14361349 × 900 that results in 12925214100
+ 14361349 × 4000 yielding 57445396000
+ 14361349 × 20000 what gives us 287226980000
+ 14361349 × 400000 giving us 5744539600000
+ 14361349 × 1000000 yielding 14361349000000
+ 14361349 × 20000000 producing 287226980000000

= 307690767778429
