After digging the largest cone on a cylinder, the volume of the remaining part is 6.28 cubic decimeters. What is the volume of the original cylinder?
在一个圆柱上挖一个最大的圆锥后，剩下部分的体积是6.28立方分米，原来圆柱的体积是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">6.28 / (2/3)</gadget>
<output>9.42</output>

<result>9.42</result>