No problem, we've got 2145 and 6810 to multiply
2145 × 6810 = 6810 × (2145)
+ 6810 × 5 which equals 34050
+ 6810 × 40 resulting in 272400
+ 6810 × 100 producing 681000
+ 6810 × 2000 producing 13620000

= 14607450
