A Business of the House motion governs how the Commons orders its time, including which days are given over to which sorts of debate. The government tables most of these; they pass routinely but are sometimes used to short-circuit opposition procedural objections.
Totals are Parliament’s official count, which does not include the tellers. Parliament’s published list names 315 of the 317 Aye voters and 180 of the 181 No voters; tellers are listed and marked but not counted.