Lat/Lon and add decimal places - how to add decimal places with Arcade expression

[TimHayes3]

I have Latitude and Longitude values that show up as whole numbers. What is the best way to create an Arcade expression that expands the decimal places at least 4? 

[jcarlson · Accepted solution]

Are they actually stored as whole numbers? What does the underlying table look like?

Check out the Text function. https://developers.arcgis.com/arcade/function-reference/text_functions/#text

return Text($feature.lat, '#.0000')