No problem, we've got 3969 and 3893 to multiply
3969 × 3893 = 3893 × (3969)
+ 3893 × 9 that results in 35037
+ 3893 × 60 what gives us 233580
+ 3893 × 900 yielding 3503700
+ 3893 × 3000 yielding 11679000

= 15451317
