Section 139.080 - Payment of taxes on part of land - duty of collector - notice and protest1. Any person desiring to pay taxes upon any part or parts of real property heretofore or hereafter assessed as one parcel, or tract, may do so by applying to the county collector, who must carefully investigate and ascertain the relative or proportionate value said part bears to the whole tract assessed, on which basis the assessment must be divided, and taxes collected accordingly; provided, where the assessed valuation of the tract to be divided exceeds two thousand dollars, a notice by registered mail must be given to the several owners interested in said tract, if known, and if no protest against said division be filed with the county collector within twenty days from date of notice, the county collector shall duly accept payment and issue receipt on apportionment as by him made.2. In cases where protest is filed to said division appeal shall be made to the county commission at their next regular session for final division, and the county collector shall accept and receipt for said taxes as determined and ordered by the county commission.3. Any person desiring to pay on an undivided interest in any real property may do so by paying to the county collector a sum equal to such proportion of the entire taxes charged on the entire tract as interest paid on bears to the whole.