Alright, let's work through 6690 times 4289 step by step
6690 × 4289 = 4289 × (6690)
+ 4289 × 0 what gives us 0
+ 4289 × 90 that results in 386010
+ 4289 × 600 what gives us 2573400
+ 4289 × 6000 resulting in 25734000

= 28693410
