502220 ÷ 51 
The aim is to understand the frequency of 51 in 502220.

Step 1:
51 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 51

Going ahead to step 2:
51 can be fit into 50 0 times, resulting in a remainder of 50.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 50 to get 50.
Include the next digit (2) from the dividend after 50, then repeat: 502 / 51

Step 3:
51 goes into 502 9 times with a remainder of 43.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 459 from 502 leaves us with 43.
Fetch the next digit (2) from the dividend, attach it to 43 and continue: 432 / 51

Moving on to step 4:
432 divided by 51 is 8 with a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 98.0
Subtract 408 from 432 to get 24.
Grab the next digit (2) from the dividend, add it to 24, then carry on: 242 / 51

Moving on to step 5:
51 can be fit into 242 4 times, resulting in a remainder of 38.
Write down 4 as next digit of the result. 
Result so far: 984.0
The remainder is 38 after subtracting 204 from 242.
Include the next digit (0) from the dividend after 38, then repeat: 380 / 51

Moving on to step 6:
380 divided by 51 is 7 with a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 9847.0
If we subtract 357 from 380, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 7:
When dividing 230 by 51, we get 4 with a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 9847.4
The remainder is 26 after subtracting 204 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 8:
51 goes into 260 5 times with a remainder of 5.
The next digit of our result is 5. 
Result so far: 9847.45
Subtract 255 from 260 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
51 goes into 50 0 times with a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 9847.45
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 10:
When dividing 500 by 51, we get 9 with a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 9847.4509
Deduct 459 from 500 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 11:
410 divided by 51 is 8 with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 9847.45098
If we subtract 408 from 410, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 12:
20 divided by 51 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 9847.45098
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
The number 51 fits into 200 3 times, leaving a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 9847.4509803
If we take 153 away from 200, we end up with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 14:
51 goes into 470 9 times with a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 9847.45098039
Subtract 459 from 470 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final result is 9847.45098039 with a remainder of 1.1e-08.