We're dividing 11971520 by 111 
The aim is to understand the frequency of 111 in 11971520.

Let's proceed to step 1:
111 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 111

Step 2:
The number 111 fits into 11 0 times, leaving a remainder of 11.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 11, we end up with 11.
Fetch the next digit (9) from the dividend, attach it to 11 and continue: 119 / 111

Let's proceed to step 3:
119 divided by 111 is 1 with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 111 from 119 to get 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 111

Step 4:
111 can be fit into 87 0 times, resulting in a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Deduct 0 from 87 and we're left with 87.
Append the next digit (1) from the dividend to 87 and continue with: 871 / 111

Going ahead to step 5:
The number 111 fits into 871 7 times, leaving a remainder of 94.
Use 7 as the next digit of our solution. 
Result so far: 107.0
Deduct 777 from 871 and we're left with 94.
Include the next digit (5) from the dividend after 94, then repeat: 945 / 111

Step 6:
945 divided by 111 is 8 with a remainder of 57.
Record the quotient 8 as the next digit in the result. 
Result so far: 1078.0
Subtract 888 from 945 to get 57.
Include the next digit (2) from the dividend after 57, then repeat: 572 / 111

Let's proceed to step 7:
If we divide 572 by 111, we get 5 and a remainder of 17.
The next digit of our result is 5. 
Result so far: 10785.0
If we subtract 555 from 572, we get 17.
Append the next digit (0) from the dividend to 17 and continue with: 170 / 111

Step 8:
170 divided by 111 is 1 with a remainder of 59.
Record the quotient 1 as the next digit in the result. 
Result so far: 107851.0
Subtracting 111 from 170 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 9:
111 goes into 590 5 times with a remainder of 35.
The next digit of our result is 5. 
Result so far: 107851.5
If we subtract 555 from 590, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 10:
If we divide 350 by 111, we get 3 and a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 107851.53
If we subtract 333 from 350, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 11:
111 goes into 170 1 times with a remainder of 59.
Write down 1 as next digit of the result. 
Result so far: 107851.531
The remainder is 59 after subtracting 111 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 12:
590 divided by 111 is 5 with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 107851.5315
Subtract 555 from 590 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 13:
111 can be fit into 350 3 times, resulting in a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 107851.53153
Deduct 333 from 350 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 14:
If we divide 170 by 111, we get 1 and a remainder of 59.
The next digit of our result is 1. 
Result so far: 107851.531531
Subtracting 111 from 170 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 15:
111 can be fit into 590 5 times, resulting in a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 107851.5315315
If we take 555 away from 590, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 16:
350 divided by 111 is 3 with a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 107851.53153153
Deduct 333 from 350 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Our division results in 107851.53153153 with a remaining 1.7e-08.