Follow these steps to divide field into multiple fields.
1. Create calculated field as date by using split function(). here [datetime] is my field name with datetime value.
You have to convert datetime to string to use split function on the datetime value.
Here index 1 indicates the first word or string before split and so on.
2. Now add these 2 column next to datetime field to see the date and time separately.
Hope this helps you.