No problem, we've got 3722 and 6445 to multiply
3722 × 6445 = 6445 × (3722)
+ 6445 × 2 what gives us 12890
+ 6445 × 20 resulting in 128900
+ 6445 × 700 what gives us 4511500
+ 6445 × 3000 yielding 19335000

= 23988290
