We divide 261843 by 51
The aim is to understand the frequency of 51 in 261843.

Step 1:
If we divide 2 by 51, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 51

On to step 2:
51 goes into 26 0 times with a remainder of 26.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 26 and we're left with 26.
Fetch the next digit (1) from the dividend, attach it to 26 and continue: 261 / 51

Advancing to step 3:
If we divide 261 by 51, we get 5 and a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we subtract 255 from 261, we get 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 51

Moving on to step 4:
When dividing 68 by 51, we get 1 with a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 51.0
If we subtract 51 from 68, we get 17.
Take the next digit (4) from the dividend and append it to 17, then repeat: 174 / 51

Step 5:
If we divide 174 by 51, we get 3 and a remainder of 21.
Put 3 as the next digit of the answer. 
Result so far: 513.0
The remainder is 21 after subtracting 153 from 174.
Fetch the next digit (3) from the dividend, attach it to 21 and continue: 213 / 51

Step 6:
The number 51 fits into 213 4 times, leaving a remainder of 9.
The next digit of our result is 4. 
Result so far: 5134.0
The remainder is 9 after subtracting 204 from 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
51 goes into 90 1 times with a remainder of 39.
The next digit of our result is 1. 
Result so far: 5134.1
Subtract 51 from 90 to 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.

Step 8:
If we divide 390 by 51, we get 7 and a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 5134.17
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.

Advancing to step 9:
330 divided by 51 is 6 with a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 5134.176
If we subtract 306 from 330, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 10:
If we divide 240 by 51, we get 4 and a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 5134.1764
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.

Advancing to step 11:
The number 51 fits into 360 7 times, leaving a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 5134.17647
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.

On to step 12:
When dividing 30 by 51, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 5134.17647
If we take 0 away from 30, we end up with 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 13:
51 can be fit into 300 5 times, resulting in a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 5134.1764705
If we subtract 255 from 300, we 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.

Let's proceed to step 14:
51 can be fit into 450 8 times, resulting in a remainder of 42.
Record the quotient 8 as the next digit in the result. 
Result so far: 5134.17647058
Deduct 408 from 450 and we're left 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.

Our division results in 5134.17647058 with a remaining 4.2e-08.