Find closest multiple of $29$ to $170$. We see that $5 \times 29 = 145$ is the nearest. Now subtract $145$ from $170$ to get reminder $25$. Add $5$ to quotient.
Find closest multiple of $29$ to $250$. We see that $8 \times 29 = 232$ is the nearest. Now subtract $232$ from $250$ to get reminder $18$. Add $8$ to quotient.
Since $18$ is less than $29$, stop the division. The reminder is $18$. The topmost line $0058$ is the quotient. Remove all zeros at the start of the quotient to get the actual quotient $58$.