No problem, we've got 1397 and 3675 to multiply
1397 × 3675 = 3675 × (1397)
+ 3675 × 7 that is equal 25725
+ 3675 × 90 that results in 330750
+ 3675 × 300 producing 1102500
+ 3675 × 1000 producing 3675000

= 5133975
