Let's calculate 1691 x 2397
1691 × 2397 = 2397 × (1691)
+ 2397 × 1 that is equal 2397
+ 2397 × 90 resulting in 215730
+ 2397 × 600 that is equal 1438200
+ 2397 × 1000 what gives us 2397000

= 4053327
