We look at the division of 339956 by 51 
Our goal is to divide 339956 by 51.

Going ahead to step 1:
If we divide 3 by 51, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 51

On to step 2:
If we divide 33 by 51, we get 0 and a remainder of 33.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 33, we get 33.
Include the next digit (9) from the dividend after 33, then repeat: 339 / 51

Advancing to step 3:
339 divided by 51 is 6 with a remainder of 33.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 306 from 339 and we're left with 33.
Fetch the next digit (9) from the dividend, attach it to 33 and continue: 339 / 51

Let's proceed to step 4:
51 can be fit into 339 6 times, resulting in a remainder of 33.
The number 6 becomes the next digit in our result. 
Result so far: 66.0
If we subtract 306 from 339, we get 33.
Grab the next digit (5) from the dividend, add it to 33, then carry on: 335 / 51

Moving on to step 5:
51 can be fit into 335 6 times, resulting in a remainder of 29.
Write down 6 as next digit of the result. 
Result so far: 666.0
Subtracting 306 from 335 leaves us with 29.
Include the next digit (6) from the dividend after 29, then repeat: 296 / 51

Advancing to step 6:
When dividing 296 by 51, we get 5 with a remainder of 41.
Use 5 as the next digit of our solution. 
Result so far: 6665.0
The remainder is 41 after subtracting 255 from 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 7:
51 can be fit into 410 8 times, resulting in a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 6665.8
The remainder is 2 after subtracting 408 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
20 divided by 51 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 6665.8
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
51 goes into 200 3 times with a remainder of 47.
The number 3 becomes the next digit in our result. 
Result so far: 6665.803
If we take 153 away from 200, we end up with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 10:
51 goes into 470 9 times with a remainder of 11.
The next digit of our result is 9. 
Result so far: 6665.8039
Subtract 459 from 470 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.

Step 11:
110 divided by 51 is 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 6665.80392
If we take 102 away from 110, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 12:
51 goes into 80 1 times with a remainder of 29.
Use 1 as the next digit of our solution. 
Result so far: 6665.803921
Subtract 51 from 80 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 13:
The number 51 fits into 290 5 times, leaving a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 6665.8039215
The remainder is 35 after subtracting 255 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 14:
If we divide 350 by 51, we get 6 and a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 6665.80392156
If we subtract 306 from 350, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final result is 6665.80392156 with a remainder of 4.4e-08.