Let's divide 251852 by 9
The aim is to understand the frequency of 9 in 251852.

On to step 1:
If we divide 2 by 9, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 9

Let's proceed to step 2:
9 goes into 25 2 times with a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 18 from 25, we get 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 9

Let's proceed to step 3:
9 can be fit into 71 7 times, resulting in a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 27.0
If we subtract 63 from 71, we get 8.
Bring next digit (8) of the dividend behind the 8 and repeat the process: 88 / 9

Step 4:
If we divide 88 by 9, we get 9 and a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 279.0
The remainder is 7 after subtracting 81 from 88.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 9

Moving on to step 5:
9 goes into 75 8 times with a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 2798.0
The remainder is 3 after subtracting 72 from 75.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 9

Advancing to step 6:
When dividing 32 by 9, we get 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 27983.0
The remainder is 5 after subtracting 27 from 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 7:
The number 9 fits into 50 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 27983.5
Deduct 45 from 50 and we're left 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.

Let's proceed to step 8:
50 divided by 9 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 27983.55
If we take 45 away from 50, 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.

The final result is 27983.55 with a remainder of 0.005.