No problem, we've got 5335 and 2640 to multiply
5335 × 2640 = 2640 × (5335)
+ 2640 × 5 which equals 13200
+ 2640 × 30 yielding 79200
+ 2640 × 300 that equals 792000
+ 2640 × 5000 that results in 13200000

= 14084400
