A cuboid iron block with a length of 10 cm, a width of 8 cm, and a height of 4 cm is melted and cast into a small cube of iron with an edge length of 4 cm. How many pieces can be cast?
把一个长10厘米，宽8厘米、高4厘米的长方体铁块熔铸成棱长是4厘米的小正方体铁块，可以熔铸多少块．
<gadget id="calculator">10 * 8 * 4</gadget>
<output>320</output>

<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<gadget id="calculator">320 / 64</gadget>
<output>5</output>

<result>5</result>