Let's calculate 5385 x 4071
5385 × 4071 = 4071 × (5385)
+ 4071 × 5 producing 20355
+ 4071 × 80 that results in 325680
+ 4071 × 300 what gives us 1221300
+ 4071 × 5000 which equals 20355000

= 21922335
