SELECT
    MIN(usageWhen),
    MAX(usageWhen),
    (SELECT
        ksc.computerDivisionID
        FROM KSComputers ksc
            JOIN KSComputerDivisions ksd ON ksc.computerDivisionID = ksd.divisionID
    	WHERE ksc.computerDivisionID != 0
    	GROUP BY ksc.computerDivisionID) divisionID
	FROM KSUsage
	WHERE usageEvent = 16;