No problem, we've got 2160 and 1887 to multiply
2160 × 1887 = 1887 × (2160)
+ 1887 × 0 what gives us 0
+ 1887 × 60 what gives us 113220
+ 1887 × 100 producing 188700
+ 1887 × 2000 that is equal 3774000

= 4075920
