(57600/900+64*99)/25.
(57600/900+64*99)/25．
<gadget id="calculator">57_600 / 900</gadget>
<output>64</output>

<gadget id="calculator">64 * 99</gadget>
<output>6_336</output>

<gadget id="calculator">64 + 6_336</gadget>
<output>6_400</output>

<gadget id="calculator">6_400 / 25</gadget>
<output>256</output>

<result>256</result>