Xihuan used a calculator to divide a number by 7. She made a mistake by pressing 4 instead of 7. She obtained the incorrect answer of 287. What should the correct answer be? Answer: ___

1. Find the original number by reversing the incorrect division.

Let the original number be $N$.
$N \div 4 = 287$
$N = 287 \times 4 = 1148$

2. Calculate the correct answer by dividing the original number by 7.

$\text{Correct answer} = 1148 \div 7 = 164$