25353509 divided by 853 
The aim is to understand the frequency of 853 in 25353509.

On to step 1:
When dividing 2 by 853, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 853

Step 2:
25 divided by 853 is 0 with a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Append the next digit (3) from the dividend to 25 and continue with: 253 / 853

Let's proceed to step 3:
If we divide 253 by 853, we get 0 and a remainder of 253.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 253 after subtracting 0 from 253.
Bring next digit (5) of the dividend behind the 253 and repeat the process: 2535 / 853

Moving on to step 4:
2535 divided by 853 is 2 with a remainder of 829.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 1706 from 2535, we get 829.
Take the next digit (3) from the dividend and append it to 829, then repeat: 8293 / 853

Going ahead to step 5:
When dividing 8293 by 853, we get 9 with a remainder of 616.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
Deduct 7677 from 8293 and we're left with 616.
Include the next digit (5) from the dividend after 616, then repeat: 6165 / 853

Step 6:
853 can be fit into 6165 7 times, resulting in a remainder of 194.
The number 7 becomes the next digit in our result. 
Result so far: 297.0
If we take 5971 away from 6165, we end up with 194.
Bring next digit (0) of the dividend behind the 194 and repeat the process: 1940 / 853

Going ahead to step 7:
The number 853 fits into 1940 2 times, leaving a remainder of 234.
The number 2 becomes the next digit in our result. 
Result so far: 2972.0
If we subtract 1706 from 1940, we get 234.
Take the next digit (9) from the dividend and append it to 234, then repeat: 2349 / 853

Step 8:
853 can be fit into 2349 2 times, resulting in a remainder of 643.
Put 2 as the next digit of the answer. 
Result so far: 29722.0
Subtracting 1706 from 2349 leaves us with 643.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6430, and continue the process.

Advancing to step 9:
853 goes into 6430 7 times with a remainder of 459.
The number 7 becomes the next digit in our result. 
Result so far: 29722.7
The remainder is 459 after subtracting 5971 from 6430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4590, and continue the process.

Advancing to step 10:
853 goes into 4590 5 times with a remainder of 325.
The next digit of our result is 5. 
Result so far: 29722.75
The remainder is 325 after subtracting 4265 from 4590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Advancing to step 11:
853 goes into 3250 3 times with a remainder of 691.
Use 3 as the next digit of our solution. 
Result so far: 29722.753
Deduct 2559 from 3250 and we're left with 691.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6910, and continue the process.

Moving on to step 12:
853 can be fit into 6910 8 times, resulting in a remainder of 86.
Use 8 as the next digit of our solution. 
Result so far: 29722.7538
Subtract 6824 from 6910 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 13:
853 goes into 860 1 times with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 29722.75381
The remainder is 7 after subtracting 853 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 14:
70 divided by 853 is 0 with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 29722.75381
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 15:
853 can be fit into 700 0 times, resulting in a remainder of 700.
Record the quotient 0 as the next digit in the result. 
Result so far: 29722.75381
Subtracting 0 from 700 leaves us with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Our division results in 29722.75381 with a remaining 7e-06.