[BUGFIX] Possible division by zero in PaginateController

Change-Id: Iefec45baa5492b516bc041a08cdd322687fff297
Releases: master, 7.6
Resolves: #72940
Reviewed-on: https://review.typo3.org/46235


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Eric Chavaillaz <eric@hemmer.ch>
Tested-by: Eric Chavaillaz <eric@hemmer.ch>
Reviewed-by: Xavier Perseguers <xavier@typo3.org>
Tested-by: Xavier Perseguers <xavier@typo3.org>