No problem, we've got 1397 and 1115 to multiply
1397 × 1115 = 1115 × (1397)
+ 1115 × 7 resulting in 7805
+ 1115 × 90 that is equal 100350
+ 1115 × 300 producing 334500
+ 1115 × 1000 yielding 1115000

= 1557655
