5432*9090+5432*909.
5432*9090+5432*909．
<gadget id="calculator">5_432 * 9_090</gadget>
<output>49_376_880</output>

<gadget id="calculator">5_432 * 909</gadget>
<output>4_937_688</output>

<gadget id="calculator">49_376_880 + 4_937_688</gadget>
<output>54_314_568</output>

<result>54_314_568</result>