We look at the division of 308780 by 51 
The aim is to understand the frequency of 51 in 308780.

On to step 1:
When dividing 3 by 51, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 51

Advancing to step 2:
If we divide 30 by 51, we get 0 and a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Bring next digit (8) of the dividend behind the 30 and repeat the process: 308 / 51

Advancing to step 3:
51 can be fit into 308 6 times, resulting in a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtract 306 from 308 to get 2.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 51

Moving on to step 4:
27 divided by 51 is 0 with a remainder of 27.
Record the quotient 0 as the next digit in the result. 
Result so far: 60.0
Subtract 0 from 27 to get 27.
Include the next digit (8) from the dividend after 27, then repeat: 278 / 51

Advancing to step 5:
When dividing 278 by 51, we get 5 with a remainder of 23.
Write down 5 as next digit of the result. 
Result so far: 605.0
Subtract 255 from 278 to get 23.
Append the next digit (0) from the dividend to 23 and continue with: 230 / 51

Going ahead to step 6:
51 can be fit into 230 4 times, resulting in a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 6054.0
If we take 204 away from 230, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 7:
51 goes into 260 5 times with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 6054.5
If we take 255 away from 260, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
If we divide 50 by 51, we get 0 and a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 6054.5
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
The number 51 fits into 500 9 times, leaving a remainder of 41.
The next digit of our result is 9. 
Result so far: 6054.509
If we take 459 away from 500, we end up 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.

Let's proceed to step 10:
410 divided by 51 is 8 with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 6054.5098
Subtract 408 from 410 to 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.

Step 11:
The number 51 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 6054.5098
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.

Going ahead to step 12:
The number 51 fits into 200 3 times, leaving a remainder of 47.
Write down 3 as next digit of the result. 
Result so far: 6054.509803
The remainder is 47 after subtracting 153 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 13:
The number 51 fits into 470 9 times, leaving a remainder of 11.
The next digit of our result is 9. 
Result so far: 6054.5098039
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.

Step 14:
110 divided by 51 is 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 6054.50980392
Subtracting 102 from 110 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 6054.50980392 with a remainder of 8e-09.