Let's divide 321286 by 51
We're looking to find how many times 51 goes into 321286.

Advancing to step 1:
The number 51 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 51

Step 2:
32 divided by 51 is 0 with a remainder of 32.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 32 leaves us with 32.
Grab the next digit (1) from the dividend, add it to 32, then carry on: 321 / 51

Going ahead to step 3:
When dividing 321 by 51, we get 6 with a remainder of 15.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 306 from 321 to get 15.
Take the next digit (2) from the dividend and append it to 15, then repeat: 152 / 51

Going ahead to step 4:
If we divide 152 by 51, we get 2 and a remainder of 50.
Use 2 as the next digit of our solution. 
Result so far: 62.0
Deduct 102 from 152 and we're left with 50.
Take the next digit (8) from the dividend and append it to 50, then repeat: 508 / 51

On to step 5:
51 goes into 508 9 times with a remainder of 49.
The number 9 becomes the next digit in our result. 
Result so far: 629.0
If we take 459 away from 508, we end up with 49.
Append the next digit (6) from the dividend to 49 and continue with: 496 / 51

Moving on to step 6:
If we divide 496 by 51, we get 9 and a remainder of 37.
The number 9 becomes the next digit in our result. 
Result so far: 6299.0
Subtract 459 from 496 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 7:
When dividing 370 by 51, we get 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 6299.7
If we take 357 away from 370, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 8:
51 can be fit into 130 2 times, resulting in a remainder of 28.
Write down 2 as next digit of the result. 
Result so far: 6299.72
If we take 102 away from 130, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 9:
51 can be fit into 280 5 times, resulting in a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 6299.725
Subtract 255 from 280 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 10:
51 goes into 250 4 times with a remainder of 46.
Write down 4 as next digit of the result. 
Result so far: 6299.7254
Subtract 204 from 250 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 11:
51 can be fit into 460 9 times, resulting in a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 6299.72549
If we take 459 away from 460, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 12:
10 divided by 51 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 6299.72549
Deduct 0 from 10 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.

On to step 13:
When dividing 100 by 51, we get 1 with a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 6299.7254901
If we take 51 away from 100, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 14:
51 can be fit into 490 9 times, resulting in a remainder of 31.
The next digit of our result is 9. 
Result so far: 6299.72549019
If we subtract 459 from 490, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Our division results in 6299.72549019 with a remaining 3.1e-08.