No problem, we've got 6784 and 2139 to multiply
6784 × 2139 = 2139 × (6784)
+ 2139 × 4 that equals 8556
+ 2139 × 80 that equals 171120
+ 2139 × 700 what gives us 1497300
+ 2139 × 6000 giving us 12834000

= 14510976
