We divide 51188505 by 251
The aim is to understand the frequency of 251 in 51188505.

Moving on to step 1:
If we divide 5 by 251, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 251

Advancing to step 2:
When dividing 51 by 251, we get 0 with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Append the next digit (1) from the dividend to 51 and continue with: 511 / 251

On to step 3:
511 divided by 251 is 2 with a remainder of 9.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 502 from 511 leaves us with 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 251

Advancing to step 4:
The number 251 fits into 98 0 times, leaving a remainder of 98.
The next digit of our result is 0. 
Result so far: 20.0
Subtract 0 from 98 to get 98.
Take the next digit (8) from the dividend and append it to 98, then repeat: 988 / 251

Let's proceed to step 5:
If we divide 988 by 251, we get 3 and a remainder of 235.
The next digit of our result is 3. 
Result so far: 203.0
If we subtract 753 from 988, we get 235.
Append the next digit (5) from the dividend to 235 and continue with: 2355 / 251

Going ahead to step 6:
The number 251 fits into 2355 9 times, leaving a remainder of 96.
The next digit of our result is 9. 
Result so far: 2039.0
The remainder is 96 after subtracting 2259 from 2355.
Include the next digit (0) from the dividend after 96, then repeat: 960 / 251

On to step 7:
251 goes into 960 3 times with a remainder of 207.
The next digit of our result is 3. 
Result so far: 20393.0
The remainder is 207 after subtracting 753 from 960.
Take the next digit (5) from the dividend and append it to 207, then repeat: 2075 / 251

Moving on to step 8:
When dividing 2075 by 251, we get 8 with a remainder of 67.
Write down 8 as next digit of the result. 
Result so far: 203938.0
Subtracting 2008 from 2075 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 9:
251 goes into 670 2 times with a remainder of 168.
Use 2 as the next digit of our solution. 
Result so far: 203938.2
Subtract 502 from 670 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 10:
When dividing 1680 by 251, we get 6 with a remainder of 174.
Record the quotient 6 as the next digit in the result. 
Result so far: 203938.26
If we subtract 1506 from 1680, we get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Let's proceed to step 11:
251 goes into 1740 6 times with a remainder of 234.
The number 6 becomes the next digit in our result. 
Result so far: 203938.266
If we subtract 1506 from 1740, we get 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

The quotient of the division is 203938.266, and the remainder is 0.0234.