We're dividing 872570 by 8 
The aim is to understand the frequency of 8 in 872570.

Going ahead to step 1:
8 can be fit into 8 1 times, resulting in a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 8 from 8 leaves us with 0.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 8

Moving on to step 2:
8 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 8

Advancing to step 3:
The number 8 fits into 72 9 times, leaving a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 109.0
Deduct 72 from 72 and we're left with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 8

Let's proceed to step 4:
8 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 1090.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 8

Going ahead to step 5:
If we divide 57 by 8, we get 7 and a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 10907.0
If we take 56 away from 57, we end up with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 8

On to step 6:
10 divided by 8 is 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 109071.0
Deduct 8 from 10 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
8 goes into 20 2 times with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 109071.2
If we take 16 away from 20, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 8:
40 divided by 8 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 109071.25
Deduct 40 from 40 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
8 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 109071.25
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
The number 8 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 109071.25
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 109071.25, with a leftover of 0.0.