48557581 divided by 251 
The aim is to understand the frequency of 251 in 48557581.

On to step 1:
4 divided by 251 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 251

Step 2:
When dividing 48 by 251, we get 0 with a remainder of 48.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 48 after subtracting 0 from 48.
Include the next digit (5) from the dividend after 48, then repeat: 485 / 251

Moving on to step 3:
When dividing 485 by 251, we get 1 with a remainder of 234.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 251 from 485 and we're left with 234.
Append the next digit (5) from the dividend to 234 and continue with: 2345 / 251

Moving on to step 4:
251 goes into 2345 9 times with a remainder of 86.
The next digit of our result is 9. 
Result so far: 19.0
Subtract 2259 from 2345 to get 86.
Grab the next digit (7) from the dividend, add it to 86, then carry on: 867 / 251

On to step 5:
251 can be fit into 867 3 times, resulting in a remainder of 114.
Write down 3 as next digit of the result. 
Result so far: 193.0
Subtract 753 from 867 to get 114.
Include the next digit (5) from the dividend after 114, then repeat: 1145 / 251

On to step 6:
251 goes into 1145 4 times with a remainder of 141.
Put 4 as the next digit of the answer. 
Result so far: 1934.0
Subtracting 1004 from 1145 leaves us with 141.
Append the next digit (8) from the dividend to 141 and continue with: 1418 / 251

Step 7:
251 can be fit into 1418 5 times, resulting in a remainder of 163.
The next digit of our result is 5. 
Result so far: 19345.0
If we subtract 1255 from 1418, we get 163.
Grab the next digit (1) from the dividend, add it to 163, then carry on: 1631 / 251

Moving on to step 8:
251 goes into 1631 6 times with a remainder of 125.
Use 6 as the next digit of our solution. 
Result so far: 193456.0
Deduct 1506 from 1631 and we're left with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 9:
When dividing 1250 by 251, we get 4 with a remainder of 246.
Write down 4 as next digit of the result. 
Result so far: 193456.4
If we subtract 1004 from 1250, we get 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Moving on to step 10:
2460 divided by 251 is 9 with a remainder of 201.
Put 9 as the next digit of the answer. 
Result so far: 193456.49
Deduct 2259 from 2460 and we're left with 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Let's proceed to step 11:
2010 divided by 251 is 8 with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 193456.498
Deduct 2008 from 2010 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 12:
The number 251 fits into 20 0 times, leaving a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 193456.498
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 13:
If we divide 200 by 251, we get 0 and a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 193456.498
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 193456.498, with a leftover of 0.0002.