We look at the division of 13006895 by 863 
The aim is to understand the frequency of 863 in 13006895.

Advancing to step 1:
If we divide 1 by 863, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 863

Going ahead to step 2:
13 divided by 863 is 0 with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 863

Moving on to step 3:
The number 863 fits into 130 0 times, leaving a remainder of 130.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 130 and we're left with 130.
Bring next digit (0) of the dividend behind the 130 and repeat the process: 1300 / 863

On to step 4:
863 goes into 1300 1 times with a remainder of 437.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 863 away from 1300, we end up with 437.
Fetch the next digit (6) from the dividend, attach it to 437 and continue: 4376 / 863

On to step 5:
4376 divided by 863 is 5 with a remainder of 61.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtracting 4315 from 4376 leaves us with 61.
Take the next digit (8) from the dividend and append it to 61, then repeat: 618 / 863

Advancing to step 6:
863 goes into 618 0 times with a remainder of 618.
Write down 0 as next digit of the result. 
Result so far: 150.0
Deduct 0 from 618 and we're left with 618.
Fetch the next digit (9) from the dividend, attach it to 618 and continue: 6189 / 863

Step 7:
When dividing 6189 by 863, we get 7 with a remainder of 148.
The next digit of our result is 7. 
Result so far: 1507.0
Deduct 6041 from 6189 and we're left with 148.
Fetch the next digit (5) from the dividend, attach it to 148 and continue: 1485 / 863

Moving on to step 8:
The number 863 fits into 1485 1 times, leaving a remainder of 622.
The next digit of our result is 1. 
Result so far: 15071.0
If we take 863 away from 1485, we end up with 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

Let's proceed to step 9:
863 can be fit into 6220 7 times, resulting in a remainder of 179.
Write down 7 as next digit of the result. 
Result so far: 15071.7
The remainder is 179 after subtracting 6041 from 6220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Advancing to step 10:
The number 863 fits into 1790 2 times, leaving a remainder of 64.
Write down 2 as next digit of the result. 
Result so far: 15071.72
If we subtract 1726 from 1790, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 11:
640 divided by 863 is 0 with a remainder of 640.
Record the quotient 0 as the next digit in the result. 
Result so far: 15071.72
Deduct 0 from 640 and we're left with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Going ahead to step 12:
The number 863 fits into 6400 7 times, leaving a remainder of 359.
Use 7 as the next digit of our solution. 
Result so far: 15071.7207
Deduct 6041 from 6400 and we're left with 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Advancing to step 13:
863 can be fit into 3590 4 times, resulting in a remainder of 138.
Put 4 as the next digit of the answer. 
Result so far: 15071.72074
Subtracting 3452 from 3590 leaves us with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Going ahead to step 14:
When dividing 1380 by 863, we get 1 with a remainder of 517.
The number 1 becomes the next digit in our result. 
Result so far: 15071.720741
If we subtract 863 from 1380, we get 517.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5170, and continue the process.

Advancing to step 15:
When dividing 5170 by 863, we get 5 with a remainder of 855.
Put 5 as the next digit of the answer. 
Result so far: 15071.7207415
Subtract 4315 from 5170 to get 855.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8550, and continue the process.

Advancing to step 16:
8550 divided by 863 is 9 with a remainder of 783.
Write down 9 as next digit of the result. 
Result so far: 15071.72074159
The remainder is 783 after subtracting 7767 from 8550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7830, and continue the process.

The final result is 15071.72074159 with a remainder of 7.83e-07.