\( \left. \begin{array} { r r } { M } & { C M } \\ { 7 } & { 70 } \\ { \times \quad 7 } \\ \hline & { } \\ \hline \\ \hline \end{array} \right. \)

To solve this multiplication problem, we need to multiply the numbers in the first row by the number in the second row. Given: \( \left. \begin{array} { r r } { M } & { C M } \\ { 7 } & { 70 } \\ { \times \quad 7 } \\ \hline & { } \\ \hline \\ \hline \end{array} \right. \) We can see that the number in the first row is 7 and the number in the second row is 70. We need to multiply 7 by 70. Let's calculate the result of the multiplication. Calculate the value by following steps: - step0: Calculate: \(7\times 70\) - step1: Multiply the numbers: \(490\) The result of multiplying 7 by 70 is 490. Therefore, the final result of the multiplication is 490.