No problem, we've got 3387 and 6870 to multiply
3387 × 6870 = 6870 × (3387)
+ 6870 × 7 which equals 48090
+ 6870 × 80 giving us 549600
+ 6870 × 300 which equals 2061000
+ 6870 × 3000 producing 20610000

= 23268690
