We look at the division of 87723083 by 863 
The aim is to understand the frequency of 863 in 87723083.

Advancing to step 1:
The number 863 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 863

Let's proceed to step 2:
863 can be fit into 87 0 times, resulting in a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 87 and we're left with 87.
Take the next digit (7) from the dividend and append it to 87, then repeat: 877 / 863

On to step 3:
The number 863 fits into 877 1 times, leaving a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 863 from 877 and we're left with 14.
Fetch the next digit (2) from the dividend, attach it to 14 and continue: 142 / 863

Advancing to step 4:
863 can be fit into 142 0 times, resulting in a remainder of 142.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 142, we get 142.
Append the next digit (3) from the dividend to 142 and continue with: 1423 / 863

Moving on to step 5:
If we divide 1423 by 863, we get 1 and a remainder of 560.
Put 1 as the next digit of the answer. 
Result so far: 101.0
If we subtract 863 from 1423, we get 560.
Take the next digit (0) from the dividend and append it to 560, then repeat: 5600 / 863

Advancing to step 6:
863 can be fit into 5600 6 times, resulting in a remainder of 422.
The next digit of our result is 6. 
Result so far: 1016.0
Subtract 5178 from 5600 to get 422.
Grab the next digit (8) from the dividend, add it to 422, then carry on: 4228 / 863

Let's proceed to step 7:
If we divide 4228 by 863, we get 4 and a remainder of 776.
Put 4 as the next digit of the answer. 
Result so far: 10164.0
Deduct 3452 from 4228 and we're left with 776.
Fetch the next digit (3) from the dividend, attach it to 776 and continue: 7763 / 863

Advancing to step 8:
863 can be fit into 7763 8 times, resulting in a remainder of 859.
Put 8 as the next digit of the answer. 
Result so far: 101648.0
If we take 6904 away from 7763, we end up with 859.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8590, and continue the process.

Let's proceed to step 9:
863 goes into 8590 9 times with a remainder of 823.
Use 9 as the next digit of our solution. 
Result so far: 101648.9
If we take 7767 away from 8590, we end up with 823.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8230, and continue the process.

On to step 10:
863 goes into 8230 9 times with a remainder of 463.
The number 9 becomes the next digit in our result. 
Result so far: 101648.99
Subtracting 7767 from 8230 leaves us with 463.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4630, and continue the process.

Our division results in 101648.99 with a remaining 0.463.