We look at the division of 851429 by 85 
Our goal is to divide 851429 by 85.

Step 1:
8 divided by 85 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 85

Let's proceed to step 2:
The number 85 fits into 85 1 times, leaving a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 85 from 85, we get 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 85

Going ahead to step 3:
85 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 85

Let's proceed to step 4:
The number 85 fits into 14 0 times, leaving a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 100.0
Deduct 0 from 14 and we're left with 14.
Include the next digit (2) from the dividend after 14, then repeat: 142 / 85

On to step 5:
When dividing 142 by 85, we get 1 with a remainder of 57.
The next digit of our result is 1. 
Result so far: 1001.0
If we take 85 away from 142, we end up with 57.
Fetch the next digit (9) from the dividend, attach it to 57 and continue: 579 / 85

Let's proceed to step 6:
85 can be fit into 579 6 times, resulting in a remainder of 69.
The number 6 becomes the next digit in our result. 
Result so far: 10016.0
Deduct 510 from 579 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Let's proceed to step 7:
85 can be fit into 690 8 times, resulting in a remainder of 10.
Write down 8 as next digit of the result. 
Result so far: 10016.8
The remainder is 10 after subtracting 680 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
When dividing 100 by 85, we get 1 with a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 10016.81
If we take 85 away from 100, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
150 divided by 85 is 1 with a remainder of 65.
The next digit of our result is 1. 
Result so far: 10016.811
Subtracting 85 from 150 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final result is 10016.811 with a remainder of 0.0065.