No problem, we've got 6576 and 400 to multiply
6576 × 400 = 400 × (6576)
+ 400 × 6 what gives us 2400
+ 400 × 70 what gives us 28000
+ 400 × 500 what gives us 200000
+ 400 × 6000 which equals 2400000

= 2630400
