We divide 63758021 by 555
The aim is to understand the frequency of 555 in 63758021.

On to step 1:
When dividing 6 by 555, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 555

On to step 2:
555 can be fit into 63 0 times, resulting in a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Include the next digit (7) from the dividend after 63, then repeat: 637 / 555

Let's proceed to step 3:
When dividing 637 by 555, we get 1 with a remainder of 82.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 82 after subtracting 555 from 637.
Include the next digit (5) from the dividend after 82, then repeat: 825 / 555

Going ahead to step 4:
The number 555 fits into 825 1 times, leaving a remainder of 270.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
The remainder is 270 after subtracting 555 from 825.
Fetch the next digit (8) from the dividend, attach it to 270 and continue: 2708 / 555

Let's proceed to step 5:
If we divide 2708 by 555, we get 4 and a remainder of 488.
Write down 4 as next digit of the result. 
Result so far: 114.0
Subtracting 2220 from 2708 leaves us with 488.
Include the next digit (0) from the dividend after 488, then repeat: 4880 / 555

Going ahead to step 6:
555 can be fit into 4880 8 times, resulting in a remainder of 440.
The next digit of our result is 8. 
Result so far: 1148.0
Deduct 4440 from 4880 and we're left with 440.
Take the next digit (2) from the dividend and append it to 440, then repeat: 4402 / 555

On to step 7:
The number 555 fits into 4402 7 times, leaving a remainder of 517.
Write down 7 as next digit of the result. 
Result so far: 11487.0
Subtract 3885 from 4402 to get 517.
Append the next digit (1) from the dividend to 517 and continue with: 5171 / 555

Step 8:
555 can be fit into 5171 9 times, resulting in a remainder of 176.
Record the quotient 9 as the next digit in the result. 
Result so far: 114879.0
If we subtract 4995 from 5171, we get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 9:
555 goes into 1760 3 times with a remainder of 95.
Record the quotient 3 as the next digit in the result. 
Result so far: 114879.3
Deduct 1665 from 1760 and we're left with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Let's proceed to step 10:
555 can be fit into 950 1 times, resulting in a remainder of 395.
Put 1 as the next digit of the answer. 
Result so far: 114879.31
Subtracting 555 from 950 leaves us with 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Going ahead to step 11:
When dividing 3950 by 555, we get 7 with a remainder of 65.
Record the quotient 7 as the next digit in the result. 
Result so far: 114879.317
Subtract 3885 from 3950 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 12:
650 divided by 555 is 1 with a remainder of 95.
The next digit of our result is 1. 
Result so far: 114879.3171
Subtracting 555 from 650 leaves us with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Advancing to step 13:
The number 555 fits into 950 1 times, leaving a remainder of 395.
The next digit of our result is 1. 
Result so far: 114879.31711
If we subtract 555 from 950, we get 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

The final result is 114879.31711 with a remainder of 0.000395.