Let's calculate 1377 x 3887
1377 × 3887 = 3887 × (1377)
+ 3887 × 7 that is equal 27209
+ 3887 × 70 that results in 272090
+ 3887 × 300 that equals 1166100
+ 3887 × 1000 resulting in 3887000

= 5352399
