The quotient of dividing the dividend by the divisor is 79. If one more divisor is subtracted from the dividend, what is the quotient?
被除数除以除数商是79，如果给被除数再减去一个除数，商是多少．
<gadget id="calculator">158 - 2</gadget>
<output>156</output>

<gadget id="calculator">156 / 2</gadget>
<output>78</output>

<result>78</result>