Fill in the boxes with the correct mathematical symbols. Each symbol can only be used once. $\boxed{+\quad,\quad-\quad,\quad\times\quad,\quad\div}$ $56\ \boxed{\phantom{\quad}}\ 4 + 3\ \boxed{\phantom{\quad}}\ 8 = 38$

1. Test division for the first box to reduce the large number 56

Assume the first box is $\div$:
$56 \div 4 = 14$

2. Determine the required value for the second part of the equation

The equation becomes $14 + 3 \ \square \ 8 = 38$.
$3 \ \square \ 8 = 38 - 14 = 24$

3. Find the correct operation for the second box

Since $3 \times 8 = 24$, the second box must be $\times$.
The symbols used are $\div$ and $\times$, which are distinct.