Alright, let's work through 6939 times 4121 step by step
6939 × 4121 = 4121 × (6939)
+ 4121 × 9 that equals 37089
+ 4121 × 30 that is equal 123630
+ 4121 × 900 which equals 3708900
+ 4121 × 6000 yielding 24726000

= 28595619
