18558640 divided by 111 
The aim is to understand the frequency of 111 in 18558640.

Advancing to step 1:
111 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 111

Moving on to step 2:
111 can be fit into 18 0 times, resulting in a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 18, we get 18.
Take the next digit (5) from the dividend and append it to 18, then repeat: 185 / 111

Step 3:
111 can be fit into 185 1 times, resulting in a remainder of 74.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 111 from 185, we get 74.
Bring next digit (5) of the dividend behind the 74 and repeat the process: 745 / 111

Let's proceed to step 4:
111 can be fit into 745 6 times, resulting in a remainder of 79.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we subtract 666 from 745, we get 79.
Bring next digit (8) of the dividend behind the 79 and repeat the process: 798 / 111

Advancing to step 5:
The number 111 fits into 798 7 times, leaving a remainder of 21.
Put 7 as the next digit of the answer. 
Result so far: 167.0
Subtract 777 from 798 to get 21.
Bring next digit (6) of the dividend behind the 21 and repeat the process: 216 / 111

On to step 6:
If we divide 216 by 111, we get 1 and a remainder of 105.
The number 1 becomes the next digit in our result. 
Result so far: 1671.0
Subtract 111 from 216 to get 105.
Take the next digit (4) from the dividend and append it to 105, then repeat: 1054 / 111

Advancing to step 7:
If we divide 1054 by 111, we get 9 and a remainder of 55.
Use 9 as the next digit of our solution. 
Result so far: 16719.0
Deduct 999 from 1054 and we're left with 55.
Bring next digit (0) of the dividend behind the 55 and repeat the process: 550 / 111

On to step 8:
If we divide 550 by 111, we get 4 and a remainder of 106.
The number 4 becomes the next digit in our result. 
Result so far: 167194.0
Deduct 444 from 550 and we're left with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

On to step 9:
111 can be fit into 1060 9 times, resulting in a remainder of 61.
Write down 9 as next digit of the result. 
Result so far: 167194.9
Subtract 999 from 1060 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 10:
610 divided by 111 is 5 with a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 167194.95
If we take 555 away from 610, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 11:
550 divided by 111 is 4 with a remainder of 106.
Use 4 as the next digit of our solution. 
Result so far: 167194.954
Subtracting 444 from 550 leaves us with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Moving on to step 12:
111 can be fit into 1060 9 times, resulting in a remainder of 61.
Write down 9 as next digit of the result. 
Result so far: 167194.9549
Deduct 999 from 1060 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 13:
The number 111 fits into 610 5 times, leaving a remainder of 55.
Record the quotient 5 as the next digit in the result. 
Result so far: 167194.95495
Subtract 555 from 610 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 14:
If we divide 550 by 111, we get 4 and a remainder of 106.
The next digit of our result is 4. 
Result so far: 167194.954954
If we take 444 away from 550, we end up with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Moving on to step 15:
1060 divided by 111 is 9 with a remainder of 61.
Put 9 as the next digit of the answer. 
Result so far: 167194.9549549
Deduct 999 from 1060 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 16:
111 can be fit into 610 5 times, resulting in a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 167194.95495495
Subtracting 555 from 610 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Our division results in 167194.95495495 with a remaining 5.5e-08.