We're dividing 866111 by 63 
The aim is to understand the frequency of 63 in 866111.

Moving on to step 1:
The number 63 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 63

On to step 2:
63 goes into 86 1 times with a remainder of 23.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 63 from 86, we get 23.
Append the next digit (6) from the dividend to 23 and continue with: 236 / 63

Advancing to step 3:
63 can be fit into 236 3 times, resulting in a remainder of 47.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we subtract 189 from 236, we get 47.
Take the next digit (1) from the dividend and append it to 47, then repeat: 471 / 63

Let's proceed to step 4:
When dividing 471 by 63, we get 7 with a remainder of 30.
The number 7 becomes the next digit in our result. 
Result so far: 137.0
Deduct 441 from 471 and we're left with 30.
Grab the next digit (1) from the dividend, add it to 30, then carry on: 301 / 63

Going ahead to step 5:
The number 63 fits into 301 4 times, leaving a remainder of 49.
Use 4 as the next digit of our solution. 
Result so far: 1374.0
If we take 252 away from 301, we end up with 49.
Grab the next digit (1) from the dividend, add it to 49, then carry on: 491 / 63

Moving on to step 6:
If we divide 491 by 63, we get 7 and a remainder of 50.
Use 7 as the next digit of our solution. 
Result so far: 13747.0
Subtracting 441 from 491 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 7:
If we divide 500 by 63, we get 7 and a remainder of 59.
Put 7 as the next digit of the answer. 
Result so far: 13747.7
Deduct 441 from 500 and we're left 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.

Going ahead to step 8:
When dividing 590 by 63, we get 9 with a remainder of 23.
The next digit of our result is 9. 
Result so far: 13747.79
If we take 567 away from 590, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 9:
If we divide 230 by 63, we get 3 and a remainder of 41.
Record the quotient 3 as the next digit in the result. 
Result so far: 13747.793
The remainder is 41 after subtracting 189 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 10:
The number 63 fits into 410 6 times, leaving a remainder of 32.
Use 6 as the next digit of our solution. 
Result so far: 13747.7936
Subtracting 378 from 410 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 11:
63 can be fit into 320 5 times, resulting in a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 13747.79365
If we subtract 315 from 320, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 12:
The number 63 fits into 50 0 times, leaving a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 13747.79365
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 13:
When dividing 500 by 63, we get 7 with a remainder of 59.
Write down 7 as next digit of the result. 
Result so far: 13747.7936507
Subtracting 441 from 500 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.

On to step 14:
63 goes into 590 9 times with a remainder of 23.
Record the quotient 9 as the next digit in the result. 
Result so far: 13747.79365079
Subtract 567 from 590 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The final outcome is 13747.79365079, with a leftover of 2.3e-08.