Find closest multiple of $333333$ to $333333$. We see that $1 \times 333333 = 333333$ is the nearest. Now subtract $333333$ from $333333$ to get reminder $0$. Add $1$ to quotient.
Since $0$ is less than $333333$, stop the division. The reminder is $0$. The topmost line $000001$ is the quotient. Remove all zeros at the start of the quotient to get the actual quotient $1$.