We're going to solve 3985 multiplied by 1069
3985 × 1069 = 1069 × (3985)
+ 1069 × 5 what gives us 5345
+ 1069 × 80 that is equal 85520
+ 1069 × 900 resulting in 962100
+ 1069 × 3000 that is equal 3207000

= 4259965
