No problem, we've got 2780 and 2660 to multiply
2780 × 2660 = 2660 × (2780)
+ 2660 × 0 that equals 0
+ 2660 × 80 what gives us 212800
+ 2660 × 700 that equals 1862000
+ 2660 × 2000 resulting in 5320000

= 7394800
