No problem, we've got 6940 and 2130 to multiply
6940 × 2130 = 2130 × (6940)
+ 2130 × 0 what gives us 0
+ 2130 × 40 that results in 85200
+ 2130 × 900 yielding 1917000
+ 2130 × 6000 resulting in 12780000

= 14782200
