LaTeX.org

I am using miktex 2.9.
Compiling with pdflatex.

I want to increase the numwidth in TOC of part entry in article class to make titles of parts aligned to one line.

The minimal example:

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel ...