Alright, let's work through 6890 times 3657 step by step
6890 × 3657 = 3657 × (6890)
+ 3657 × 0 resulting in 0
+ 3657 × 90 that is equal 329130
+ 3657 × 800 which equals 2925600
+ 3657 × 6000 that is equal 21942000

= 25196730
