No problem, we've got 3699 and 7440 to multiply
3699 × 7440 = 7440 × (3699)
+ 7440 × 9 giving us 66960
+ 7440 × 90 what gives us 669600
+ 7440 × 600 that is equal 4464000
+ 7440 × 3000 that is equal 22320000

= 27520560
