Let's divide 812886 by 51
Our goal is to divide 812886 by 51.

Let's proceed to step 1:
51 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
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 / 51

Advancing to step 2:
When dividing 81 by 51, we get 1 with a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 51 away from 81, we end up with 30.
Include the next digit (2) from the dividend after 30, then repeat: 302 / 51

Step 3:
51 goes into 302 5 times with a remainder of 47.
The next digit of our result is 5. 
Result so far: 15.0
Subtract 255 from 302 to get 47.
Fetch the next digit (8) from the dividend, attach it to 47 and continue: 478 / 51

Moving on to step 4:
The number 51 fits into 478 9 times, leaving a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 159.0
Subtracting 459 from 478 leaves us with 19.
Bring next digit (8) of the dividend behind the 19 and repeat the process: 198 / 51

On to step 5:
51 goes into 198 3 times with a remainder of 45.
The next digit of our result is 3. 
Result so far: 1593.0
If we take 153 away from 198, we end up with 45.
Include the next digit (6) from the dividend after 45, then repeat: 456 / 51

Going ahead to step 6:
When dividing 456 by 51, we get 8 with a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 15938.0
Deduct 408 from 456 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 7:
480 divided by 51 is 9 with a remainder of 21.
Write down 9 as next digit of the result. 
Result so far: 15938.9
Deduct 459 from 480 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 8:
51 can be fit into 210 4 times, resulting in a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 15938.94
Subtracting 204 from 210 leaves us 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.

Going ahead to step 9:
51 goes into 60 1 times with a remainder of 9.
The next digit of our result is 1. 
Result so far: 15938.941
Subtracting 51 from 60 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 10:
When dividing 90 by 51, we get 1 with a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 15938.9411
The remainder is 39 after subtracting 51 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

After the division, we end up with 15938.9411 and a remainder of 0.00039.