Suppose 173 * 927 nmod50 where 0<= n< 50. What is the value of n ​

Suppose $173 * 927 n \pmod {50}$ where $0\le n < 50$.
What is the value of $n$ ?

$\begin{array}{|rcll|} \hline && \mathbf{ 173 * 927\pmod {50}} \\ &\equiv& 160371 \pmod {50} \\ &\equiv& 160350 + 21 \pmod {50} \\ &\equiv& 3201*50 + 21 \pmod {50} \quad | \quad 3201*50 \equiv 0 \mod{50}\\ &\equiv& 0 + 21 \pmod {50} \\ &\equiv& \mathbf{21 \pmod {50}} \\ \hline \end{array}$

n = 21