Alright, let's work through 6891 times 4061 step by step
6891 × 4061 = 4061 × (6891)
+ 4061 × 1 that is equal 4061
+ 4061 × 90 resulting in 365490
+ 4061 × 800 that equals 3248800
+ 4061 × 6000 yielding 24366000

= 27984351
