On a precision part drawing with a scale of 5:1, the length of the part is measured to be 40mm. What is the actual length of this part in millimeters?
在一张比例尺为5：1的精密零件图纸上，量得零件长40毫米．这个零件的实际长度是多少毫米？
<gadget id="calculator">5 / 1</gadget>
<output>5</output>

<gadget id="calculator">40 / 5</gadget>
<output>8</output>

<result>8</result>