1573:3

The expression \(1573 \div 3\) equals \(524.3333...\) or \(524\) with a remainder of \(1\). If you're looking for the exact division, you can write it as:

\[ 1573 = 3 \times 524 + 1 \]

So, the final answer is \(524\) with a remainder of \(1\) when \(1573\) is divided by \(3\).