No problem, we've got 3816 and 4644 to multiply
3816 × 4644 = 4644 × (3816)
+ 4644 × 6 that results in 27864
+ 4644 × 10 that equals 46440
+ 4644 × 800 what gives us 3715200
+ 4644 × 3000 yielding 13932000

= 17721504
