Garrett bought $13.15\ell$ of soda and poured all of it into a bucket. He used part of it to fill $\frac{1}{7}$ of an empty bottle that had a capacity of $9.1\ell$. Then, he used some of the remaining soda to fill $4$ cups of $350\text{ml}$ each completely. How much soda did he have left in the bucket in the end? Express your answer in litres.~\uline{~~~~~~~~~~}~$\ell$ 
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