No problem, we've got 7790 and 2880 to multiply
7790 × 2880 = 2880 × (7790)
+ 2880 × 0 that is equal 0
+ 2880 × 90 that results in 259200
+ 2880 × 700 giving us 2016000
+ 2880 × 7000 what gives us 20160000

= 22435200
