The revenue to which the county level of government is entitled must be determined according to the proportion the county mill levy on other real property bears to the total mill levies on real property of each taxing district wherein the property subject to valuation is located. The revenue remaining after apportionment to the county level must be apportioned and distributed among the various taxing districts in which the property for which payments are made is located by the county auditor upon a pro rata basis to be determined according to the proportion the assessed value of the property subject to valuation in each taxing district bears to the total assessed value of all such property subject to valuation within the county. However, if the property subject to valuation is leased or held by lease or license from the United States, the payment made by the director of the game and fish department must be apportioned and distributed among the various taxing districts, other than the county, in which the property for which payments are made is located, by the county auditor upon a pro rata basis to be determined according to the proportion the assessed value of the property subject to valuation in each taxing district bears to the total assessed value of all such property subject to valuation within the county. The amount of revenue allocated to each taxing district in which the property subject to valuation is located must be divided among the various funds of the district according to the proportion that the mill levy for any fund bears to the total of all mill levies spread against other property in the taxing district that is assessed and taxed on an ad valorem basis.