Digitally displays [item=parameter-0]/[item=parameter-1]. Input to [item=red-wire] on the central [item=medium-electric-pole]. Tileable for more digits/precision: copy at least two columns, and overlap them by at least 1 tile. Factorio's integer rollover breaks this at about 1 Billion/1 Billionth.
Improved version uses more signals on the green wires for fewer wire channels (should be more lag-friendly)