No problem, we've got 6640 and 8224 to multiply
6640 × 8224 = 8224 × (6640)
+ 8224 × 0 giving us 0
+ 8224 × 40 resulting in 328960
+ 8224 × 600 what gives us 4934400
+ 8224 × 6000 resulting in 49344000

= 54607360
