If a cuboid with a length of 8 decimeters, a width of 6 decimeters and a height of 4 decimeters is processed into the largest cylinder, what is the volume of the cut-off part in cubic decimeters?
把一个长8分米，宽6分米，高4分米的长方体，加工成一个最大的圆柱体，削去部分的体积是多少立方分米？
<gadget id="calculator">8 * 6 * 4</gadget>
<output>192</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 4</gadget>
<output>113.04</output>

<gadget id="calculator">192 - 113.04</gadget>
<output>78.96</output>

<result>78.96</result>