Finding partial numerics

Hello everyone!

Is there a way to get results for fields with numeric values and a search string which contains only a part of a number?

Like, there is a field called tour_id with the value 24311 and my search string is "431", so my resultset must contain all tour_ids with "431" in it.

You can use something like https://www.elastic.co/guide/en/elasticsearch/reference/2.3/query-dsl-wildcard-query.html, but it might be expensive.