No problem, we've got 1438 and 1800 to multiply
1438 × 1800 = 1800 × (1438)
+ 1800 × 8 which equals 14400
+ 1800 × 30 resulting in 54000
+ 1800 × 400 what gives us 720000
+ 1800 × 1000 producing 1800000

= 2588400
