Let's divide 851225 by 8
We're looking to find how many times 8 goes into 851225.

Let's proceed to step 1:
If we divide 8 by 8, we get 1 and a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 8 from 8 to get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 8

On to step 2:
If we divide 5 by 8, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 8

Let's proceed to step 3:
The number 8 fits into 51 6 times, leaving a remainder of 3.
Record the quotient 6 as the next digit in the result. 
Result so far: 106.0
Subtracting 48 from 51 leaves us with 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 8

On to step 4:
If we divide 32 by 8, we get 4 and a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 1064.0
Deduct 32 from 32 and we're left with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 8

Step 5:
8 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 10640.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 8

Going ahead to step 6:
8 goes into 25 3 times with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 106403.0
Deduct 24 from 25 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
10 divided by 8 is 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 106403.1
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.

Moving on to step 8:
The number 8 fits into 20 2 times, leaving a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 106403.12
Subtract 16 from 20 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
8 can be fit into 40 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 106403.125
Subtract 40 from 40 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.

Advancing to step 10:
The number 8 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 106403.125
If we take 0 away from 0, we end up 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.

Advancing to step 11:
8 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 106403.125
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.

In conclusion, the division gives 106403.125 with a balance of 0.0.