No problem, we've got 2655 and 6840 to multiply
2655 × 6840 = 6840 × (2655)
+ 6840 × 5 resulting in 34200
+ 6840 × 50 that is equal 342000
+ 6840 × 600 which equals 4104000
+ 6840 × 2000 what gives us 13680000

= 18160200
