Alright, let's work through 6309 times 2671 step by step
6309 × 2671 = 2671 × (6309)
+ 2671 × 9 producing 24039
+ 2671 × 00 that equals 0
+ 2671 × 300 yielding 801300
+ 2671 × 6000 giving us 16026000

= 16851339
