We look at the division of 18683919 by 555 
The aim is to understand the frequency of 555 in 18683919.

Let's proceed to step 1:
If we divide 1 by 555, we get 0 and 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.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 555

Step 2:
The number 555 fits into 18 0 times, leaving a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Include the next digit (6) from the dividend after 18, then repeat: 186 / 555

Advancing to step 3:
555 goes into 186 0 times with a remainder of 186.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 186 leaves us with 186.
Take the next digit (8) from the dividend and append it to 186, then repeat: 1868 / 555

Moving on to step 4:
The number 555 fits into 1868 3 times, leaving a remainder of 203.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 1665 from 1868 and we're left with 203.
Fetch the next digit (3) from the dividend, attach it to 203 and continue: 2033 / 555

On to step 5:
When dividing 2033 by 555, we get 3 with a remainder of 368.
Use 3 as the next digit of our solution. 
Result so far: 33.0
Deduct 1665 from 2033 and we're left with 368.
Include the next digit (9) from the dividend after 368, then repeat: 3689 / 555

Let's proceed to step 6:
If we divide 3689 by 555, we get 6 and a remainder of 359.
The number 6 becomes the next digit in our result. 
Result so far: 336.0
The remainder is 359 after subtracting 3330 from 3689.
Take the next digit (1) from the dividend and append it to 359, then repeat: 3591 / 555

Let's proceed to step 7:
When dividing 3591 by 555, we get 6 with a remainder of 261.
Write down 6 as next digit of the result. 
Result so far: 3366.0
Subtracting 3330 from 3591 leaves us with 261.
Append the next digit (9) from the dividend to 261 and continue with: 2619 / 555

Going ahead to step 8:
If we divide 2619 by 555, we get 4 and a remainder of 399.
Write down 4 as next digit of the result. 
Result so far: 33664.0
Subtract 2220 from 2619 to get 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

Let's proceed to step 9:
555 goes into 3990 7 times with a remainder of 105.
Write down 7 as next digit of the result. 
Result so far: 33664.7
Deduct 3885 from 3990 and we're left with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Going ahead to step 10:
555 goes into 1050 1 times with a remainder of 495.
The next digit of our result is 1. 
Result so far: 33664.71
Subtracting 555 from 1050 leaves us with 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Advancing to step 11:
555 goes into 4950 8 times with a remainder of 510.
The number 8 becomes the next digit in our result. 
Result so far: 33664.718
If we subtract 4440 from 4950, we get 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Advancing to step 12:
555 can be fit into 5100 9 times, resulting in a remainder of 105.
The number 9 becomes the next digit in our result. 
Result so far: 33664.7189
Subtracting 4995 from 5100 leaves us with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Step 13:
If we divide 1050 by 555, we get 1 and a remainder of 495.
The next digit of our result is 1. 
Result so far: 33664.71891
Subtract 555 from 1050 to get 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Step 14:
555 can be fit into 4950 8 times, resulting in a remainder of 510.
The next digit of our result is 8. 
Result so far: 33664.718918
Subtracting 4440 from 4950 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Moving on to step 15:
555 can be fit into 5100 9 times, resulting in a remainder of 105.
Record the quotient 9 as the next digit in the result. 
Result so far: 33664.7189189
If we subtract 4995 from 5100, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Step 16:
The number 555 fits into 1050 1 times, leaving a remainder of 495.
Record the quotient 1 as the next digit in the result. 
Result so far: 33664.71891891
Subtracting 555 from 1050 leaves us with 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

The final outcome is 33664.71891891, with a leftover of 4.95e-07.