No problem, we've got 6820 and 6940 to multiply
6820 × 6940 = 6940 × (6820)
+ 6940 × 0 that results in 0
+ 6940 × 20 resulting in 138800
+ 6940 × 800 yielding 5552000
+ 6940 × 6000 producing 41640000

= 47330800
