Devise an algorithm to check whether a string t divides another string s or not. A string s is divided by t only if the string s is formed only by the concatenation of string t, i.e. if s t + t+ t ... +t then it can be divided by t. You can assume that the length of string t will always be less than the length of string s.

Process or set of rules that allow for the solving of specific, well-defined computational problems through a specific series of commands. This topic is fundamental in computer science, especially with regard to artificial intelligence, databases, graphics, networking, operating systems, and security.