No problem, we've got 3426 and 3872 to multiply
3426 × 3872 = 3872 × (3426)
+ 3872 × 6 what gives us 23232
+ 3872 × 20 resulting in 77440
+ 3872 × 400 giving us 1548800
+ 3872 × 3000 giving us 11616000

= 13265472
