We divide 851002 by 12
We want to figure out the number of times 851002 can be divided by 12.

Step 1:
12 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 12

Going ahead to step 2:
85 divided by 12 is 7 with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtract 84 from 85 to get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 12

Let's proceed to step 3:
12 can be fit into 11 0 times, resulting in a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 70.0
Deduct 0 from 11 and we're left with 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 12

Step 4:
12 can be fit into 110 9 times, resulting in a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 709.0
The remainder is 2 after subtracting 108 from 110.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 12

Going ahead to step 5:
The number 12 fits into 20 1 times, leaving a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 7091.0
Deduct 12 from 20 and we're left with 8.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 12

On to step 6:
The number 12 fits into 82 6 times, leaving a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 70916.0
Deduct 72 from 82 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
12 goes into 100 8 times with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 70916.8
Subtract 96 from 100 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.

Let's proceed to step 8:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 70916.83
Subtract 36 from 40 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:
12 goes into 40 3 times with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 70916.833
Deduct 36 from 40 and we're left 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.

In conclusion, the division gives 70916.833 with a balance of 0.0004.