No problem, we've got 3117 and 4065 to multiply
3117 × 4065 = 4065 × (3117)
+ 4065 × 7 that equals 28455
+ 4065 × 10 what gives us 40650
+ 4065 × 100 that is equal 406500
+ 4065 × 3000 that equals 12195000

= 12670605
