Alright, let's work through 6889 times 1861 step by step
6889 × 1861 = 1861 × (6889)
+ 1861 × 9 that results in 16749
+ 1861 × 80 what gives us 148880
+ 1861 × 800 that equals 1488800
+ 1861 × 6000 giving us 11166000

= 12820429
