We look at the division of 11964577 by 855 
The aim is to understand the frequency of 855 in 11964577.

Moving on to step 1:
855 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 855

Let's proceed to step 2:
When dividing 11 by 855, we get 0 with a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 11, we end up with 11.
Append the next digit (9) from the dividend to 11 and continue with: 119 / 855

Step 3:
119 divided by 855 is 0 with a remainder of 119.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 119 and we're left with 119.
Grab the next digit (6) from the dividend, add it to 119, then carry on: 1196 / 855

Let's proceed to step 4:
1196 divided by 855 is 1 with a remainder of 341.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 855 from 1196 leaves us with 341.
Fetch the next digit (4) from the dividend, attach it to 341 and continue: 3414 / 855

Going ahead to step 5:
855 goes into 3414 3 times with a remainder of 849.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Subtract 2565 from 3414 to get 849.
Append the next digit (5) from the dividend to 849 and continue with: 8495 / 855

On to step 6:
If we divide 8495 by 855, we get 9 and a remainder of 800.
Use 9 as the next digit of our solution. 
Result so far: 139.0
Subtracting 7695 from 8495 leaves us with 800.
Append the next digit (7) from the dividend to 800 and continue with: 8007 / 855

Step 7:
The number 855 fits into 8007 9 times, leaving a remainder of 312.
The number 9 becomes the next digit in our result. 
Result so far: 1399.0
Subtract 7695 from 8007 to get 312.
Append the next digit (7) from the dividend to 312 and continue with: 3127 / 855

Step 8:
If we divide 3127 by 855, we get 3 and a remainder of 562.
Use 3 as the next digit of our solution. 
Result so far: 13993.0
The remainder is 562 after subtracting 2565 from 3127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5620, and continue the process.

Let's proceed to step 9:
855 goes into 5620 6 times with a remainder of 490.
Put 6 as the next digit of the answer. 
Result so far: 13993.6
Subtracting 5130 from 5620 leaves us with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Moving on to step 10:
4900 divided by 855 is 5 with a remainder of 625.
The next digit of our result is 5. 
Result so far: 13993.65
If we subtract 4275 from 4900, we get 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Moving on to step 11:
When dividing 6250 by 855, we get 7 with a remainder of 265.
Record the quotient 7 as the next digit in the result. 
Result so far: 13993.657
If we subtract 5985 from 6250, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Going ahead to step 12:
855 can be fit into 2650 3 times, resulting in a remainder of 85.
Record the quotient 3 as the next digit in the result. 
Result so far: 13993.6573
The remainder is 85 after subtracting 2565 from 2650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 13:
855 goes into 850 0 times with a remainder of 850.
Put 0 as the next digit of the answer. 
Result so far: 13993.6573
If we take 0 away from 850, we end up 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.

Moving on to step 14:
8500 divided by 855 is 9 with a remainder of 805.
Put 9 as the next digit of the answer. 
Result so far: 13993.657309
If we subtract 7695 from 8500, we get 805.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8050, and continue the process.

Going ahead to step 15:
If we divide 8050 by 855, we get 9 and a remainder of 355.
The next digit of our result is 9. 
Result so far: 13993.6573099
If we subtract 7695 from 8050, we get 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

The final result is 13993.6573099 with a remainder of 3.55e-06.