No problem, we've got 7889 and 1556 to multiply
7889 × 1556 = 1556 × (7889)
+ 1556 × 9 that is equal 14004
+ 1556 × 80 producing 124480
+ 1556 × 800 resulting in 1244800
+ 1556 × 7000 which equals 10892000

= 12275284
