We divide 231816 by 51
The aim is to understand the frequency of 51 in 231816.

Advancing to step 1:
51 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 51

Going ahead to step 2:
51 can be fit into 23 0 times, resulting in a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 23, we get 23.
Append the next digit (1) from the dividend to 23 and continue with: 231 / 51

Step 3:
If we divide 231 by 51, we get 4 and a remainder of 27.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 27 after subtracting 204 from 231.
Append the next digit (8) from the dividend to 27 and continue with: 278 / 51

Step 4:
51 goes into 278 5 times with a remainder of 23.
The next digit of our result is 5. 
Result so far: 45.0
If we subtract 255 from 278, we get 23.
Take the next digit (1) from the dividend and append it to 23, then repeat: 231 / 51

Moving on to step 5:
When dividing 231 by 51, we get 4 with a remainder of 27.
Use 4 as the next digit of our solution. 
Result so far: 454.0
Subtracting 204 from 231 leaves us with 27.
Include the next digit (6) from the dividend after 27, then repeat: 276 / 51

Going ahead to step 6:
276 divided by 51 is 5 with a remainder of 21.
Record the quotient 5 as the next digit in the result. 
Result so far: 4545.0
If we subtract 255 from 276, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 7:
If we divide 210 by 51, we get 4 and a remainder of 6.
The next digit of our result is 4. 
Result so far: 4545.4
If we subtract 204 from 210, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
The number 51 fits into 60 1 times, leaving a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 4545.41
If we take 51 away from 60, we end up with 9.
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 9:
When dividing 90 by 51, we get 1 with a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 4545.411
The remainder is 39 after subtracting 51 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The quotient of the division is 4545.411, and the remainder is 0.0039.