53717829 ÷ 51 
The aim is to understand the frequency of 51 in 53717829.

On to step 1:
5 divided by 51 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 51

Going ahead to step 2:
The number 51 fits into 53 1 times, leaving a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 51 away from 53, we end up with 2.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 51

Let's proceed to step 3:
If we divide 27 by 51, we get 0 and a remainder of 27.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we subtract 0 from 27, we get 27.
Grab the next digit (1) from the dividend, add it to 27, then carry on: 271 / 51

Advancing to step 4:
If we divide 271 by 51, we get 5 and a remainder of 16.
The next digit of our result is 5. 
Result so far: 105.0
Subtracting 255 from 271 leaves us with 16.
Grab the next digit (7) from the dividend, add it to 16, then carry on: 167 / 51

Step 5:
The number 51 fits into 167 3 times, leaving a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 1053.0
The remainder is 14 after subtracting 153 from 167.
Grab the next digit (8) from the dividend, add it to 14, then carry on: 148 / 51

Advancing to step 6:
51 goes into 148 2 times with a remainder of 46.
Record the quotient 2 as the next digit in the result. 
Result so far: 10532.0
If we subtract 102 from 148, we get 46.
Bring next digit (2) of the dividend behind the 46 and repeat the process: 462 / 51

Let's proceed to step 7:
462 divided by 51 is 9 with a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 105329.0
The remainder is 3 after subtracting 459 from 462.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 51

On to step 8:
If we divide 39 by 51, we get 0 and a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 1053290.0
If we subtract 0 from 39, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 9:
When dividing 390 by 51, we get 7 with a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 1053290.7
Deduct 357 from 390 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 10:
51 can be fit into 330 6 times, resulting in a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 1053290.76
The remainder is 24 after subtracting 306 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 11:
If we divide 240 by 51, we get 4 and a remainder of 36.
The next digit of our result is 4. 
Result so far: 1053290.764
If we subtract 204 from 240, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 12:
If we divide 360 by 51, we get 7 and a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 1053290.7647
Deduct 357 from 360 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 13:
51 can be fit into 30 0 times, resulting in a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 1053290.7647
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 14:
51 can be fit into 300 5 times, resulting in a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 1053290.764705
Subtract 255 from 300 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 15:
450 divided by 51 is 8 with a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 1053290.7647058
Subtracting 408 from 450 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 16:
The number 51 fits into 420 8 times, leaving a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 1053290.76470588
Deduct 408 from 420 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

In conclusion, the division gives 1053290.76470588 with a balance of 1.2e-08.