Alright, let's work through 4620 times 4221 step by step
4620 × 4221 = 4221 × (4620)
+ 4221 × 0 that results in 0
+ 4221 × 20 what gives us 84420
+ 4221 × 600 which equals 2532600
+ 4221 × 4000 that is equal 16884000

= 19501020
