The quotient of 78 and 39, except the difference between 585 and 265, what is the quotient? How much is listed as a comprehensive formula.
78与39的商，除585与265的差，商是多少？列成综合算式是多少．
<gadget id="calculator">585 - 265</gadget>
<output>320</output>

<gadget id="calculator">78 / 39</gadget>
<output>2</output>

<gadget id="calculator">320 / 2</gadget>
<output>160</output>

<result>160</result>