Computer software is used at a location in this state if the purchaser or licensee uses the computer software in the regular course of business operations in this state, for personal use in this state, or if the purchaser or licensee is an individual whose domicile is in this state. If the purchaser or licensee uses the computer software in more than one state, the gross receipts shall be divided among those states having jurisdiction to impose an income tax on the taxpayer in proportion to the use of the computer software in those states. To determine computer software use in this state, the department may consider the number of users in each state where the computer software is used, the number of site licenses or workstations in this state, and any other factors that reflect the use of computer software in this state.