683239 divided by 51 
We want to divide 683239 by 51.

Step 1:
51 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 51

Advancing to step 2:
51 can be fit into 68 1 times, resulting in a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 51 from 68 and we're left with 17.
Append the next digit (3) from the dividend to 17 and continue with: 173 / 51

Advancing to step 3:
51 goes into 173 3 times with a remainder of 20.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we take 153 away from 173, we end up with 20.
Fetch the next digit (2) from the dividend, attach it to 20 and continue: 202 / 51

On to step 4:
When dividing 202 by 51, we get 3 with a remainder of 49.
Use 3 as the next digit of our solution. 
Result so far: 133.0
The remainder is 49 after subtracting 153 from 202.
Append the next digit (3) from the dividend to 49 and continue with: 493 / 51

Let's proceed to step 5:
The number 51 fits into 493 9 times, leaving a remainder of 34.
Put 9 as the next digit of the answer. 
Result so far: 1339.0
The remainder is 34 after subtracting 459 from 493.
Append the next digit (9) from the dividend to 34 and continue with: 349 / 51

Moving on to step 6:
When dividing 349 by 51, we get 6 with a remainder of 43.
The number 6 becomes the next digit in our result. 
Result so far: 13396.0
The remainder is 43 after subtracting 306 from 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 7:
When dividing 430 by 51, we get 8 with a remainder of 22.
The next digit of our result is 8. 
Result so far: 13396.8
Subtracting 408 from 430 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 8:
If we divide 220 by 51, we get 4 and a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 13396.84
If we take 204 away from 220, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 9:
If we divide 160 by 51, we get 3 and a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 13396.843
If we subtract 153 from 160, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 10:
When dividing 70 by 51, we get 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 13396.8431
If we take 51 away from 70, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 11:
190 divided by 51 is 3 with a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 13396.84313
If we take 153 away from 190, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 12:
370 divided by 51 is 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 13396.843137
Subtracting 357 from 370 leaves us 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.

On to step 13:
130 divided by 51 is 2 with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 13396.8431372
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.

Going ahead to step 14:
51 goes into 280 5 times with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 13396.84313725
Deduct 255 from 280 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final outcome is 13396.84313725, with a leftover of 2.5e-08.