We're dividing 439486 by 51 
We're looking to find how many times 51 goes into 439486.

Moving on to step 1:
The number 51 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 51

Advancing to step 2:
When dividing 43 by 51, we get 0 with a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Include the next digit (9) from the dividend after 43, then repeat: 439 / 51

On to step 3:
51 goes into 439 8 times with a remainder of 31.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 408 from 439 leaves us with 31.
Append the next digit (4) from the dividend to 31 and continue with: 314 / 51

On to step 4:
314 divided by 51 is 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 86.0
If we take 306 away from 314, we end up with 8.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 51

Going ahead to step 5:
51 can be fit into 88 1 times, resulting in a remainder of 37.
Write down 1 as next digit of the result. 
Result so far: 861.0
The remainder is 37 after subtracting 51 from 88.
Bring next digit (6) of the dividend behind the 37 and repeat the process: 376 / 51

On to step 6:
If we divide 376 by 51, we get 7 and a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 8617.0
Subtract 357 from 376 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 7:
51 goes into 190 3 times with a remainder of 37.
The number 3 becomes the next digit in our result. 
Result so far: 8617.3
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.

Step 8:
51 goes into 370 7 times with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 8617.37
Deduct 357 from 370 and we're left 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.

Going ahead to step 9:
51 goes into 130 2 times with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 8617.372
The remainder is 28 after subtracting 102 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 10:
51 goes into 280 5 times with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 8617.3725
The remainder is 25 after subtracting 255 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 11:
51 can be fit into 250 4 times, resulting in a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 8617.37254
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 12:
51 goes into 460 9 times with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 8617.372549
Deduct 459 from 460 and we're left 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.

Let's proceed to step 13:
When dividing 10 by 51, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 8617.372549
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 14:
If we divide 100 by 51, we get 1 and a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 8617.37254901
The remainder is 49 after subtracting 51 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

In conclusion, the division gives 8617.37254901 with a balance of 4.9e-08.