First fill a cube water tank with a side length of 6dm with water, then pour this tank of water into another cuboid water tank with a length of 90cm, a width of 40cm, and a height of 8dm. How many decimeters is the water depth?
先把一个棱长6dm的正方体水箱装满水，在把这箱水倒入另一个长90cm，宽40cm，高8dm的长方体水箱中，水深是多少分米？
<gadget id="calculator">90 / 10</gadget>
<output>9</output>

<gadget id="calculator">40 / 10</gadget>
<output>4</output>

<gadget id="calculator">9 * 4</gadget>
<output>36</output>

<gadget id="calculator">6 / 36</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">6 * 6 * (1/6)</gadget>
<output>6</output>

<result>6</result>