We're dividing 85580302 by 853 
The aim is to understand the frequency of 853 in 85580302.

Step 1:
8 divided by 853 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 853

On to step 2:
853 can be fit into 85 0 times, resulting in a remainder of 85.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Bring next digit (5) of the dividend behind the 85 and repeat the process: 855 / 853

On to step 3:
When dividing 855 by 853, we get 1 with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 853 from 855 and we're left with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 853

On to step 4:
If we divide 28 by 853, we get 0 and a remainder of 28.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 28, we get 28.
Take the next digit (0) from the dividend and append it to 28, then repeat: 280 / 853

Let's proceed to step 5:
853 can be fit into 280 0 times, resulting in a remainder of 280.
The next digit of our result is 0. 
Result so far: 100.0
If we take 0 away from 280, we end up with 280.
Grab the next digit (3) from the dividend, add it to 280, then carry on: 2803 / 853

Let's proceed to step 6:
853 goes into 2803 3 times with a remainder of 244.
Record the quotient 3 as the next digit in the result. 
Result so far: 1003.0
If we take 2559 away from 2803, we end up with 244.
Take the next digit (0) from the dividend and append it to 244, then repeat: 2440 / 853

Going ahead to step 7:
2440 divided by 853 is 2 with a remainder of 734.
Put 2 as the next digit of the answer. 
Result so far: 10032.0
Subtract 1706 from 2440 to get 734.
Fetch the next digit (2) from the dividend, attach it to 734 and continue: 7342 / 853

Going ahead to step 8:
853 goes into 7342 8 times with a remainder of 518.
The next digit of our result is 8. 
Result so far: 100328.0
If we subtract 6824 from 7342, we get 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

On to step 9:
The number 853 fits into 5180 6 times, leaving a remainder of 62.
The number 6 becomes the next digit in our result. 
Result so far: 100328.6
Subtract 5118 from 5180 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 10:
620 divided by 853 is 0 with a remainder of 620.
The number 0 becomes the next digit in our result. 
Result so far: 100328.6
If we take 0 away from 620, we end up with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Going ahead to step 11:
853 goes into 6200 7 times with a remainder of 229.
Put 7 as the next digit of the answer. 
Result so far: 100328.607
Deduct 5971 from 6200 and we're left with 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Let's proceed to step 12:
When dividing 2290 by 853, we get 2 with a remainder of 584.
Write down 2 as next digit of the result. 
Result so far: 100328.6072
Deduct 1706 from 2290 and we're left with 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Going ahead to step 13:
If we divide 5840 by 853, we get 6 and a remainder of 722.
Put 6 as the next digit of the answer. 
Result so far: 100328.60726
The remainder is 722 after subtracting 5118 from 5840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7220, and continue the process.

Going ahead to step 14:
If we divide 7220 by 853, we get 8 and a remainder of 396.
The number 8 becomes the next digit in our result. 
Result so far: 100328.607268
Deduct 6824 from 7220 and we're left with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

Going ahead to step 15:
853 can be fit into 3960 4 times, resulting in a remainder of 548.
Put 4 as the next digit of the answer. 
Result so far: 100328.6072684
Subtracting 3412 from 3960 leaves us with 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Let's proceed to step 16:
The number 853 fits into 5480 6 times, leaving a remainder of 362.
Put 6 as the next digit of the answer. 
Result so far: 100328.60726846
Subtracting 5118 from 5480 leaves us with 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Our division results in 100328.60726846 with a remaining 3.62e-07.