\[\boxed{\mathbf{3.}\mathbf{358}}\]
Пояснение.
Решение.
\[\textbf{а)}\ 258\ :15 = 17\ (ост.\ 3)\]
\[q = 17;\ \ r = 3.\]
\[\textbf{б)}\ 4238\ :14 = 302\ (ост.\ 10)\]
\[q = 302;\ \ r = 10.\]
\[\textbf{в)}\ 1073\ :39 = 27\ (ост.\ 20)\]
\[q = 27;\ \ r = 20.\]
\[\textbf{г)}\ 1952\ :61 = 32\]
\[q = 32;\ \ r = 0.\]