No problem, we've got 3880 and 6490 to multiply
3880 × 6490 = 6490 × (3880)
+ 6490 × 0 that equals 0
+ 6490 × 80 resulting in 519200
+ 6490 × 800 which equals 5192000
+ 6490 × 3000 that results in 19470000

= 25181200
