We're dividing 8104583 by 851 
We're looking to find how many times 851 goes into 8104583.

Moving on to step 1:
If we divide 8 by 851, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 851

Going ahead to step 2:
When dividing 81 by 851, we get 0 with a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Grab the next digit (0) from the dividend, add it to 81, then carry on: 810 / 851

Advancing to step 3:
If we divide 810 by 851, we get 0 and a remainder of 810.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 810, we end up with 810.
Bring next digit (4) of the dividend behind the 810 and repeat the process: 8104 / 851

Moving on to step 4:
The number 851 fits into 8104 9 times, leaving a remainder of 445.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtracting 7659 from 8104 leaves us with 445.
Fetch the next digit (5) from the dividend, attach it to 445 and continue: 4455 / 851

Moving on to step 5:
851 can be fit into 4455 5 times, resulting in a remainder of 200.
The next digit of our result is 5. 
Result so far: 95.0
If we take 4255 away from 4455, we end up with 200.
Fetch the next digit (8) from the dividend, attach it to 200 and continue: 2008 / 851

Moving on to step 6:
When dividing 2008 by 851, we get 2 with a remainder of 306.
Record the quotient 2 as the next digit in the result. 
Result so far: 952.0
The remainder is 306 after subtracting 1702 from 2008.
Grab the next digit (3) from the dividend, add it to 306, then carry on: 3063 / 851

Moving on to step 7:
851 can be fit into 3063 3 times, resulting in a remainder of 510.
Use 3 as the next digit of our solution. 
Result so far: 9523.0
If we subtract 2553 from 3063, we get 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Advancing to step 8:
851 goes into 5100 5 times with a remainder of 845.
Write down 5 as next digit of the result. 
Result so far: 9523.5
If we take 4255 away from 5100, we end up with 845.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8450, and continue the process.

Let's proceed to step 9:
When dividing 8450 by 851, we get 9 with a remainder of 791.
Write down 9 as next digit of the result. 
Result so far: 9523.59
If we take 7659 away from 8450, we end up with 791.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7910, and continue the process.

Going ahead to step 10:
851 can be fit into 7910 9 times, resulting in a remainder of 251.
Write down 9 as next digit of the result. 
Result so far: 9523.599
Deduct 7659 from 7910 and we're left with 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

The final result is 9523.599 with a remainder of 0.0251.