A small turtle moves at a speed of 399 furlongs per fortnight. Find the speed of the turtle in centimeters per second. Note that 1 furlong = 220 yards and1 fortnight = 14 days.

1 inch = 2.54 cm (exactly)
36 in = 36*2.54 cm = 91.44 cm
1 yard = 36 in = 91.44 cm
220 yds = 220*91.44 cm = 20116.8 cm
1 furlong = 220*91.44 cm = 20116.8 cm