$$\frac{4}{523}$$
or
$${\frac{{\mathtt{4}}}{{\mathtt{523}}}} = {\mathtt{0.007\: \!648\: \!183\: \!556\: \!405\: \!4}}$$
This decimal answer is an approximation. If you had enough digits a recurring fraction would appear.
$${\frac{{\mathtt{4}}}{{\mathtt{523}}}} = {\mathtt{0.007\: \!648\: \!183\: \!556\: \!405\: \!4}}$$
$${\mathtt{0.007\: \!648\: \!183\: \!556\: \!405\: \!4}}$$ is your answer.