To solve the problems and the additional question, follow these steps:

### Calculation

1. **Addition:** \(46,980 + 19,807\)
\[
\begin{array}{c}
\ \ \ \ 46,980 \\
+ \ 19,807 \\
\hline
\ 66,787 \\
\end{array}
\]

2. **Subtraction:** \(60,623 - 24,537\)
\[
\begin{array}{c}
\ \ \ \ 60,623 \\
- \ 24,537 \\
\hline
\ 36,086 \\
\end{array}
\]

3. **Multiplication:** \(5,209 \times 6\)
\[
\begin{array}{c}
\ \ \ \ 5,209 \\
\times \ 6 \\
\hline
\ 31,254 \\
\end{array}
\]

4. **Division:** \(54,306 \div 9\)
\[
\begin{array}{c}
\ \ \ \ 6,034 \\
\end{array}
\]

### Additional Problem

The store sells:

- **First day:** 5,358 kg
- **Second day:** 3 times the first day: \(5,358 \times 3 = 16,074\) kg
- **Third day:** 1,250 kg less than the second day: \(16,074 - 1,250 = 14,824\) kg

**Total sold:**
\[5,358 + 16,074 + 14,824 = 36,256\] kg

The store sold a total of 36,256 kg of rice over the three days.