We look at the division of 812453 by 86 
We're looking to find how many times 86 goes into 812453.

Advancing to step 1:
If we divide 8 by 86, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 86

Going ahead to step 2:
86 goes into 81 0 times with a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Append the next digit (2) from the dividend to 81 and continue with: 812 / 86

On to step 3:
86 can be fit into 812 9 times, resulting in a remainder of 38.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 774 from 812 and we're left with 38.
Grab the next digit (4) from the dividend, add it to 38, then carry on: 384 / 86

Step 4:
The number 86 fits into 384 4 times, leaving a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 94.0
If we take 344 away from 384, we end up with 40.
Grab the next digit (5) from the dividend, add it to 40, then carry on: 405 / 86

Step 5:
If we divide 405 by 86, we get 4 and a remainder of 61.
Use 4 as the next digit of our solution. 
Result so far: 944.0
The remainder is 61 after subtracting 344 from 405.
Include the next digit (3) from the dividend after 61, then repeat: 613 / 86

On to step 6:
The number 86 fits into 613 7 times, leaving a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 9447.0
Subtract 602 from 613 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
When dividing 110 by 86, we get 1 with a remainder of 24.
Write down 1 as next digit of the result. 
Result so far: 9447.1
If we subtract 86 from 110, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 8:
86 goes into 240 2 times with a remainder of 68.
Record the quotient 2 as the next digit in the result. 
Result so far: 9447.12
If we subtract 172 from 240, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 9:
The number 86 fits into 680 7 times, leaving a remainder of 78.
Use 7 as the next digit of our solution. 
Result so far: 9447.127
If we take 602 away from 680, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 10:
The number 86 fits into 780 9 times, leaving a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 9447.1279
If we take 774 away from 780, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 11:
If we divide 60 by 86, we get 0 and a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 9447.1279
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 12:
86 goes into 600 6 times with a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 9447.127906
Subtract 516 from 600 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 13:
86 can be fit into 840 9 times, resulting in a remainder of 66.
Record the quotient 9 as the next digit in the result. 
Result so far: 9447.1279069
If we subtract 774 from 840, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 14:
When dividing 660 by 86, we get 7 with a remainder of 58.
Put 7 as the next digit of the answer. 
Result so far: 9447.12790697
Deduct 602 from 660 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The final result is 9447.12790697 with a remainder of 5.8e-08.