We divide 51136201 by 311
The aim is to understand the frequency of 311 in 51136201.

On to step 1:
When dividing 5 by 311, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 311

On to step 2:
51 divided by 311 is 0 with a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Fetch the next digit (1) from the dividend, attach it to 51 and continue: 511 / 311

On to step 3:
511 divided by 311 is 1 with a remainder of 200.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 311 from 511 leaves us with 200.
Fetch the next digit (3) from the dividend, attach it to 200 and continue: 2003 / 311

Moving on to step 4:
311 can be fit into 2003 6 times, resulting in a remainder of 137.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
The remainder is 137 after subtracting 1866 from 2003.
Fetch the next digit (6) from the dividend, attach it to 137 and continue: 1376 / 311

On to step 5:
When dividing 1376 by 311, we get 4 with a remainder of 132.
Write down 4 as next digit of the result. 
Result so far: 164.0
Subtract 1244 from 1376 to get 132.
Include the next digit (2) from the dividend after 132, then repeat: 1322 / 311

Moving on to step 6:
If we divide 1322 by 311, we get 4 and a remainder of 78.
Put 4 as the next digit of the answer. 
Result so far: 1644.0
If we take 1244 away from 1322, we end up with 78.
Append the next digit (0) from the dividend to 78 and continue with: 780 / 311

Moving on to step 7:
If we divide 780 by 311, we get 2 and a remainder of 158.
The number 2 becomes the next digit in our result. 
Result so far: 16442.0
Subtract 622 from 780 to get 158.
Append the next digit (1) from the dividend to 158 and continue with: 1581 / 311

Step 8:
1581 divided by 311 is 5 with a remainder of 26.
Write down 5 as next digit of the result. 
Result so far: 164425.0
The remainder is 26 after subtracting 1555 from 1581.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 9:
If we divide 260 by 311, we get 0 and a remainder of 260.
The number 0 becomes the next digit in our result. 
Result so far: 164425.0
If we subtract 0 from 260, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 10:
311 goes into 2600 8 times with a remainder of 112.
Use 8 as the next digit of our solution. 
Result so far: 164425.08
Deduct 2488 from 2600 and we're left with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 11:
1120 divided by 311 is 3 with a remainder of 187.
The next digit of our result is 3. 
Result so far: 164425.083
If we subtract 933 from 1120, we get 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

On to step 12:
The number 311 fits into 1870 6 times, leaving a remainder of 4.
The next digit of our result is 6. 
Result so far: 164425.0836
The remainder is 4 after subtracting 1866 from 1870.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 13:
311 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 164425.0836
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 14:
311 can be fit into 400 1 times, resulting in a remainder of 89.
Record the quotient 1 as the next digit in the result. 
Result so far: 164425.083601
If we take 311 away from 400, we end up with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Let's proceed to step 15:
The number 311 fits into 890 2 times, leaving a remainder of 268.
Put 2 as the next digit of the answer. 
Result so far: 164425.0836012
The remainder is 268 after subtracting 622 from 890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

On to step 16:
If we divide 2680 by 311, we get 8 and a remainder of 192.
Use 8 as the next digit of our solution. 
Result so far: 164425.08360128
Subtracting 2488 from 2680 leaves us with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

After the division, we end up with 164425.08360128 and a remainder of 1.92e-07.