Did you mean something like this?
Sheet1
<table style="font-family: Calibri,Arial; font-size: 11pt; background-color: rgb(255, 255, 255); padding-left: 2pt; padding-right: 2pt;" border="1" cellpadding="0" cellspacing="0"> <colgroup><col style="font-weight: bold; width: 30px;"><col style="width: 74px;"><col style="width: 64px;"></colgroup><tbody><tr style="background-color: rgb(202, 202, 202); text-align: center; font-weight: bold; font-size: 8pt;"><td> </td><td>A</td><td>B</td></tr><tr style="height: 18px;"><td style="font-size: 8pt; background-color: rgb(202, 202, 202); text-align: center;">1</td><td style="text-align: right;">54,648,456</td><td> </td></tr><tr style="height: 18px;"><td style="font-size: 8pt; background-color: rgb(202, 202, 202); text-align: center;">2</td><td>Hundreds</td><td style="text-align: right;">456</td></tr><tr style="height: 18px;"><td style="font-size: 8pt; background-color: rgb(202, 202, 202); text-align: center;">3</td><td>Thousands</td><td style="text-align: right;">648</td></tr><tr style="height: 18px;"><td style="font-size: 8pt; background-color: rgb(202, 202, 202); text-align: center;">4</td><td>Millions</td><td style="text-align: right;">54</td></tr></tbody></table>
<table style="font-family: Arial; font-size: 10pt; border-style: groove; border-color: rgb(0, 255, 0); background-color: rgb(255, 252, 249); color: rgb(0, 0, 0);"><tbody><tr><td>Spreadsheet Formulas</td></tr><tr><td><table style="font-family: Arial; font-size: 9pt;" border="1" cellpadding="2" cellspacing="0"><tbody><tr style="background-color: rgb(202, 202, 202); font-size: 10pt;"><td>Cell</td><td>Formula</td></tr><tr><td>B2</td><td>=MOD(A1/1000,1)*1000</td></tr><tr><td>B3</td><td>=INT(MOD(A1/1000000,1)*1000)</td></tr><tr><td>B4</td><td>=INT(A1/1000000)</td></tr></tbody></table></td></tr></tbody></table>