No problem, we've got 4260 and 3375 to multiply
4260 × 3375 = 3375 × (4260)
+ 3375 × 0 giving us 0
+ 3375 × 60 which equals 202500
+ 3375 × 200 what gives us 675000
+ 3375 × 4000 yielding 13500000

= 14377500
