Roll a square steel ingot with a side length of 4dm into a rectangular steel plate with a width of 8dm and a thickness of 0.2dm. What is the length of the steel plate in decimeters?
把一个棱长为4dm的正方体钢锭轧成一块宽8dm、厚0.2dm的长方体钢板，钢板的长度是多少分米？
<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<gadget id="calculator">8 * 0.2</gadget>
<output>1.6</output>

<gadget id="calculator">64 / 1.6</gadget>
<output>40</output>

<result>40</result>