Find closest multiple of $29$ to $126$. We see that $4 \times 29 = 116$ is the nearest. Now subtract $116$ from $126$ to get reminder $10$. Add $4$ to quotient.
Since $10$ is less than $29$, stop the division. The reminder is $10$. The topmost line $004$ is the quotient. Remove all zeros at the start of the quotient to get the actual quotient $4$.