编写一个程序，可以在给定的列表中查找给定的数字，并报告该数字出现的次数。
数字列表：[3, 7, 1, 6, 7, 8, 5, 7, 2, 9, 5, 7]
要查找的数字: 7
以下是 Python 代码实现：

```python
num_list = [3, 7, 1, 6, 7, 8, 5, 7, 2, 9, 5, 7]
num_to_find = 7

count = num_list.count(num_to_find)

print(f"The number {num_to_find} appears {count} times in the list.")
```

输出：

```
The number 7 appears 4 times in the list.
```