No problem, we've got 3811 and 3585 to multiply
3811 × 3585 = 3585 × (3811)
+ 3585 × 1 what gives us 3585
+ 3585 × 10 that is equal 35850
+ 3585 × 800 that equals 2868000
+ 3585 × 3000 that equals 10755000

= 13662435
