Division of 22512 by an unknown number
To find the number by which 22512 should be divided to get 112, we need to perform a division operation. Let's go through the steps to solve this problem.

Step 1: Set up the division problem
We can set up the division problem as follows:
```
________________
? | 22512
```

Step 2: Divide the first digit
We start by dividing the first digit of the dividend (22512) by the unknown number:
```
________________
? | 22512
```
Since the first digit of 22512 is 2 and 2 divided by any number greater than 1 will be less than 112, we can conclude that the unknown number should be greater than 1.

Step 3: Divide the first two digits
Next, we divide the first two digits of the dividend (22) by the unknown number:
```
________________
? | 22512
```
Since 22 divided by any number greater than 1 will be less than 112, we can conclude that the unknown number should be greater than 22.

Step 4: Divide the first three digits
Now, we divide the first three digits of the dividend (225) by the unknown number:
```
________________
? | 22512
```
Since 225 divided by any number greater than 1 will be less than 112, we can conclude that the unknown number should be greater than 225.

Step 5: Divide the first four digits
Finally, we divide the first four digits of the dividend (2251) by the unknown number:
```
________________
? | 22512
```
When we divide 2251 by 112, we get a quotient greater than 1. Therefore, the unknown number should be 112.

Conclusion
To get 112 as a quotient when dividing 22512, we need to divide it by 112.

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