No problem, we've got 1667 and 9111 to multiply
1667 × 9111 = 9111 × (1667)
+ 9111 × 7 that is equal 63777
+ 9111 × 60 resulting in 546660
+ 9111 × 600 resulting in 5466600
+ 9111 × 1000 which equals 9111000

= 15188037
