Alright, let's work through 6631 times 2861 step by step
6631 × 2861 = 2861 × (6631)
+ 2861 × 1 that is equal 2861
+ 2861 × 30 resulting in 85830
+ 2861 × 600 resulting in 1716600
+ 2861 × 6000 that is equal 17166000

= 18971291
