51988657 ÷ 811 
The aim is to understand the frequency of 811 in 51988657.

Going ahead to step 1:
811 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 811

On to step 2:
When dividing 51 by 811, we get 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Grab the next digit (9) from the dividend, add it to 51, then carry on: 519 / 811

Let's proceed to step 3:
If we divide 519 by 811, we get 0 and a remainder of 519.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 519 after subtracting 0 from 519.
Include the next digit (8) from the dividend after 519, then repeat: 5198 / 811

Advancing to step 4:
811 can be fit into 5198 6 times, resulting in a remainder of 332.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 4866 from 5198 and we're left with 332.
Fetch the next digit (8) from the dividend, attach it to 332 and continue: 3328 / 811

On to step 5:
811 can be fit into 3328 4 times, resulting in a remainder of 84.
Write down 4 as next digit of the result. 
Result so far: 64.0
The remainder is 84 after subtracting 3244 from 3328.
Fetch the next digit (6) from the dividend, attach it to 84 and continue: 846 / 811

Let's proceed to step 6:
When dividing 846 by 811, we get 1 with a remainder of 35.
Write down 1 as next digit of the result. 
Result so far: 641.0
Subtract 811 from 846 to get 35.
Bring next digit (5) of the dividend behind the 35 and repeat the process: 355 / 811

Step 7:
The number 811 fits into 355 0 times, leaving a remainder of 355.
The number 0 becomes the next digit in our result. 
Result so far: 6410.0
Deduct 0 from 355 and we're left with 355.
Append the next digit (7) from the dividend to 355 and continue with: 3557 / 811

On to step 8:
The number 811 fits into 3557 4 times, leaving a remainder of 313.
The number 4 becomes the next digit in our result. 
Result so far: 64104.0
The remainder is 313 after subtracting 3244 from 3557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Step 9:
When dividing 3130 by 811, we get 3 with a remainder of 697.
Write down 3 as next digit of the result. 
Result so far: 64104.3
Deduct 2433 from 3130 and we're left with 697.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6970, and continue the process.

Advancing to step 10:
If we divide 6970 by 811, we get 8 and a remainder of 482.
Write down 8 as next digit of the result. 
Result so far: 64104.38
Subtract 6488 from 6970 to get 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Going ahead to step 11:
4820 divided by 811 is 5 with a remainder of 765.
Put 5 as the next digit of the answer. 
Result so far: 64104.385
Subtract 4055 from 4820 to get 765.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7650, and continue the process.

Let's proceed to step 12:
811 goes into 7650 9 times with a remainder of 351.
The number 9 becomes the next digit in our result. 
Result so far: 64104.3859
The remainder is 351 after subtracting 7299 from 7650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

Advancing to step 13:
3510 divided by 811 is 4 with a remainder of 266.
Put 4 as the next digit of the answer. 
Result so far: 64104.38594
Deduct 3244 from 3510 and we're left with 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Let's proceed to step 14:
If we divide 2660 by 811, we get 3 and a remainder of 227.
Record the quotient 3 as the next digit in the result. 
Result so far: 64104.385943
Deduct 2433 from 2660 and we're left with 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Moving on to step 15:
The number 811 fits into 2270 2 times, leaving a remainder of 648.
Put 2 as the next digit of the answer. 
Result so far: 64104.3859432
If we subtract 1622 from 2270, we get 648.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6480, and continue the process.

Let's proceed to step 16:
6480 divided by 811 is 7 with a remainder of 803.
The number 7 becomes the next digit in our result. 
Result so far: 64104.38594327
Deduct 5677 from 6480 and we're left with 803.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8030, and continue the process.

In conclusion, the division gives 64104.38594327 with a balance of 8.03e-07.