No problem, we've got 6422 and 2502 to multiply
6422 × 2502 = 2502 × (6422)
+ 2502 × 2 yielding 5004
+ 2502 × 20 what gives us 50040
+ 2502 × 400 resulting in 1000800
+ 2502 × 6000 resulting in 15012000

= 16067844
