850434 ÷ 12 
We want to figure out the number of times 850434 can be divided by 12.

Advancing to step 1:
When dividing 8 by 12, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
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 / 12

Going ahead to step 2:
If we divide 85 by 12, we get 7 and a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we take 84 away from 85, we end up with 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 12

Moving on to step 3:
12 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 70.0
If we subtract 0 from 10, we get 10.
Grab the next digit (4) from the dividend, add it to 10, then carry on: 104 / 12

Let's proceed to step 4:
12 goes into 104 8 times with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 708.0
Deduct 96 from 104 and we're left with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 12

Advancing to step 5:
12 can be fit into 83 6 times, resulting in a remainder of 11.
Use 6 as the next digit of our solution. 
Result so far: 7086.0
The remainder is 11 after subtracting 72 from 83.
Fetch the next digit (4) from the dividend, attach it to 11 and continue: 114 / 12

Moving on to step 6:
When dividing 114 by 12, we get 9 with a remainder of 6.
The next digit of our result is 9. 
Result so far: 70869.0
Subtract 108 from 114 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
60 divided by 12 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 70869.5
Subtracting 60 from 60 leaves us 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.

Going ahead to step 8:
12 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 70869.5
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.

Advancing to step 9:
12 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 70869.5
Subtracting 0 from 0 leaves us 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.

Our division results in 70869.5 with a remaining 0.0.