The answer is 15873.

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We realize that $49=7^2$ thus if we find a number that has all the digits which are the same and is divisible by $7$ we can multiply that by $7$ and it will still have all the same digits. Thus by inspection we see that $111111$ is divisible by $7$ thus our answer is $\frac{7*111111}{49}=\boxed{15873}$