How frequently does the first-ever Scheduling Assistant get paid?
PayFrequency = 1 refers to ‘Salary received monthly’; PayFrequency = 2 refers to ‘Salary received biweekly';
SELECT T2.PayFrequency FROM Employee AS T1 INNER JOIN EmployeePayHistory AS T2 ON T1.BusinessEntityID = T2.BusinessEntityID WHERE T1.JobTitle = 'Scheduling Assistant' ORDER BY T1.HireDate LIMIT 1