Forge a cube steel billet with a side length of 4 decimeters into a rectangular parallelepiped steel billet with a length of 8 decimeters and a width of 2 decimeters. How tall is the forged billet?
把一个棱长为4分米的正方体钢坯锻造成一个长为8分米，宽为2分米的长方体钢坯，锻成的钢坯有多高？
<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<gadget id="calculator">4 / 16</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">4 * 4 * (1/4)</gadget>
<output>4</output>

<result>4</result>