No problem, we've got 3521 and 3865 to multiply
3521 × 3865 = 3865 × (3521)
+ 3865 × 1 giving us 3865
+ 3865 × 20 that results in 77300
+ 3865 × 500 resulting in 1932500
+ 3865 × 3000 which equals 11595000

= 13608665
