No problem, we've got 1287 and 2399 to multiply
1287 × 2399 = 2399 × (1287)
+ 2399 × 7 that equals 16793
+ 2399 × 80 resulting in 191920
+ 2399 × 200 that is equal 479800
+ 2399 × 1000 that results in 2399000

= 3087513
