We divide 205380 by 51
The aim is to understand the frequency of 51 in 205380.

Going ahead to step 1:
51 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 51

Advancing to step 2:
20 divided by 51 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Fetch the next digit (5) from the dividend, attach it to 20 and continue: 205 / 51

On to step 3:
51 can be fit into 205 4 times, resulting in a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 204 from 205, we get 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 51

Let's proceed to step 4:
If we divide 13 by 51, we get 0 and a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 40.0
Subtract 0 from 13 to get 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 51

Step 5:
When dividing 138 by 51, we get 2 with a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 402.0
Deduct 102 from 138 and we're left with 36.
Take the next digit (0) from the dividend and append it to 36, then repeat: 360 / 51

Let's proceed to step 6:
360 divided by 51 is 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 4027.0
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.

Moving on to step 7:
51 goes into 30 0 times with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 4027.0
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.

Step 8:
300 divided by 51 is 5 with a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 4027.05
Subtracting 255 from 300 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 9:
When dividing 450 by 51, we get 8 with a remainder of 42.
Record the quotient 8 as the next digit in the result. 
Result so far: 4027.058
If we subtract 408 from 450, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 10:
The number 51 fits into 420 8 times, leaving a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 4027.0588
If we take 408 away from 420, we end up 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.

The final result is 4027.0588 with a remainder of 0.00012.