73604099 ÷ 853 
The aim is to understand the frequency of 853 in 73604099.

Going ahead to step 1:
When dividing 7 by 853, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 853

Going ahead to step 2:
The number 853 fits into 73 0 times, leaving a remainder of 73.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 73 leaves us with 73.
Take the next digit (6) from the dividend and append it to 73, then repeat: 736 / 853

Step 3:
If we divide 736 by 853, we get 0 and a remainder of 736.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 736 and we're left with 736.
Fetch the next digit (0) from the dividend, attach it to 736 and continue: 7360 / 853

Moving on to step 4:
853 can be fit into 7360 8 times, resulting in a remainder of 536.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 6824 from 7360 leaves us with 536.
Include the next digit (4) from the dividend after 536, then repeat: 5364 / 853

Moving on to step 5:
853 goes into 5364 6 times with a remainder of 246.
The next digit of our result is 6. 
Result so far: 86.0
If we take 5118 away from 5364, we end up with 246.
Take the next digit (0) from the dividend and append it to 246, then repeat: 2460 / 853

On to step 6:
853 can be fit into 2460 2 times, resulting in a remainder of 754.
Write down 2 as next digit of the result. 
Result so far: 862.0
If we subtract 1706 from 2460, we get 754.
Bring next digit (9) of the dividend behind the 754 and repeat the process: 7549 / 853

Step 7:
If we divide 7549 by 853, we get 8 and a remainder of 725.
Record the quotient 8 as the next digit in the result. 
Result so far: 8628.0
Subtract 6824 from 7549 to get 725.
Take the next digit (9) from the dividend and append it to 725, then repeat: 7259 / 853

Step 8:
If we divide 7259 by 853, we get 8 and a remainder of 435.
Write down 8 as next digit of the result. 
Result so far: 86288.0
Subtract 6824 from 7259 to get 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Let's proceed to step 9:
The number 853 fits into 4350 5 times, leaving a remainder of 85.
The next digit of our result is 5. 
Result so far: 86288.5
The remainder is 85 after subtracting 4265 from 4350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 10:
When dividing 850 by 853, we get 0 with a remainder of 850.
Write down 0 as next digit of the result. 
Result so far: 86288.5
Deduct 0 from 850 and we're left with 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8500, and continue the process.

Going ahead to step 11:
If we divide 8500 by 853, we get 9 and a remainder of 823.
Record the quotient 9 as the next digit in the result. 
Result so far: 86288.509
Deduct 7677 from 8500 and we're left with 823.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8230, and continue the process.

Moving on to step 12:
If we divide 8230 by 853, we get 9 and a remainder of 553.
Write down 9 as next digit of the result. 
Result so far: 86288.5099
If we take 7677 away from 8230, we end up with 553.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5530, and continue the process.

Our division results in 86288.5099 with a remaining 0.00553.