Alright, let's work through 6311 times 3386 step by step
6311 × 3386 = 3386 × (6311)
+ 3386 × 1 resulting in 3386
+ 3386 × 10 what gives us 33860
+ 3386 × 300 yielding 1015800
+ 3386 × 6000 giving us 20316000

= 21369046
