Let's calculate 3684 x 5420
3684 × 5420 = 5420 × (3684)
+ 5420 × 4 that is equal 21680
+ 5420 × 80 producing 433600
+ 5420 × 600 that results in 3252000
+ 5420 × 3000 that results in 16260000

= 19967280
