Let's calculate 3251 x 1620
3251 × 1620 = 1620 × (3251)
+ 1620 × 1 that results in 1620
+ 1620 × 50 that is equal 81000
+ 1620 × 200 that is equal 324000
+ 1620 × 3000 which equals 4860000

= 5266620
