Alright, let's work through 3386 times 6139 step by step
3386 × 6139 = 6139 × (3386)
+ 6139 × 6 giving us 36834
+ 6139 × 80 what gives us 491120
+ 6139 × 300 which equals 1841700
+ 6139 × 3000 that equals 18417000

= 20786654
