What is the quotient of the difference between 0.77 and 0.7 divided by 4.2?
0.77与0.7的差除4.2，商是多少？
<gadget id="calculator">0.77 - 0.7</gadget>
<output>0.07</output>

<gadget id="calculator">4.2 / 0.07</gadget>
<output>60</output>

<result>60</result>