We're going to solve 6899 multiplied by 2639
6899 × 2639 = 2639 × (6899)
+ 2639 × 9 that is equal 23751
+ 2639 × 90 producing 237510
+ 2639 × 800 that equals 2111200
+ 2639 × 6000 resulting in 15834000

= 18206461
