How do i increase a column of a table using Laravel 5?

It's very simple to increment an specific column of a table using laravel. 
Conditions: The specific column's data type should be an 'int' type.
procedures:
                   1. Link your app model to your linking section with this code
                          use App\Loanapplication ;
                   2. then just write the following codes to increment your specific database column
                         $loanapplication = Loanapplication::where('MemberId', $MemberId)->increment('PayedInstallment');

               Where, 

                             '$loanapplication' is a variable.
                             'Loanapplication' is model.
                             'where('table column name', 'variable name for comparing')'
                             'increment('column name of your table which you want to increase')' is function for increasing a column by 1