Alright, let's work through 6200 times 2139 step by step
6200 × 2139 = 2139 × (6200)
+ 2139 × 0 that results in 0
+ 2139 × 00 what gives us 0
+ 2139 × 200 giving us 427800
+ 2139 × 6000 that results in 12834000

= 13261800
