Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
2010 Sibu by-election
Table title:
Results
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Candidate </th><th colspan=1 rowspan=1 > Votes </th><th colspan=1 rowspan=1 > % </th><th colspan=1 rowspan=1 > ∆% </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > DAP </td><td class="highlighted"  colspan=1 rowspan=1 > Wong Ho Leng </td><td colspan=1 rowspan=1 > 18,845 </td><td colspan=1 rowspan=1 > 50.22 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > BN </td><td colspan=1 rowspan=1 > Robert Lau Hui Yew </td><td colspan=1 rowspan=1 > 18,447 </td><td colspan=1 rowspan=1 > 49.16 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td colspan=1 rowspan=1 > Narawi Haron </td><td colspan=1 rowspan=1 > 232 </td><td colspan=1 rowspan=1 > 0.62 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=3 rowspan=1 > Total valid votes </td><td colspan=1 rowspan=1 > 37,524 </td><td colspan=1 rowspan=1 > 100.00 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=3 rowspan=1 > Total rejected ballots </td><td colspan=1 rowspan=1 > 395 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=3 rowspan=1 > Unreturned ballots </td><td colspan=1 rowspan=1 > 192 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=3 rowspan=1 > Turnout </td><td colspan=1 rowspan=1 > 38,111 </td><td colspan=1 rowspan=1 > 69.68 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=3 rowspan=1 > Registered electors </td><td colspan=1 rowspan=1 > 54,695 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=3 rowspan=1 > Majority </td><td class="highlighted"  colspan=1 rowspan=1 > 398 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=2 rowspan=1 > DAP gain from BN </td><td colspan=2 rowspan=1 > Swing </td><td colspan=1 rowspan=1 > ? </td></tr>
<tr> <td colspan=7 rowspan=1 > Source(s) "Pilihan Raya Kecil P.212 Sibu". Election Commission of Malaysia. Retrieved 2018-09-19. </td></tr>
</table>
Question:
Who won the 2010 Sibu by-election and by how many votes?
Answer:
Wong won the 2010 Sibu by-election by 398 votes.