Find closest multiple of $80$ to $128$. We see that $1 \times 80 = 80$ is the nearest. Now subtract $80$ from $128$ to get reminder $48$. Add $1$ to quotient.
Find closest multiple of $80$ to $480$. We see that $6 \times 80 = 480$ is the nearest. Now subtract $480$ from $480$ to get reminder $0$. Add $6$ to quotient.
Since $0$ is less than $80$, stop the division. The reminder is $0$. The topmost line $0016$ is the quotient. Remove all zeros at the start of the quotient to get the actual quotient $16$.
