865432 ÷ 51 
We want to divide 865432 by 51.

Let's proceed to step 1:
51 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 51

Let's proceed to step 2:
If we divide 86 by 51, we get 1 and a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 51 from 86 to get 35.
Append the next digit (5) from the dividend to 35 and continue with: 355 / 51

Step 3:
51 goes into 355 6 times with a remainder of 49.
The next digit of our result is 6. 
Result so far: 16.0
Subtract 306 from 355 to get 49.
Include the next digit (4) from the dividend after 49, then repeat: 494 / 51

Step 4:
The number 51 fits into 494 9 times, leaving a remainder of 35.
The number 9 becomes the next digit in our result. 
Result so far: 169.0
Subtract 459 from 494 to get 35.
Take the next digit (3) from the dividend and append it to 35, then repeat: 353 / 51

Going ahead to step 5:
51 can be fit into 353 6 times, resulting in a remainder of 47.
Put 6 as the next digit of the answer. 
Result so far: 1696.0
Deduct 306 from 353 and we're left with 47.
Fetch the next digit (2) from the dividend, attach it to 47 and continue: 472 / 51

On to step 6:
51 goes into 472 9 times with a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 16969.0
Subtract 459 from 472 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 7:
51 goes into 130 2 times with a remainder of 28.
The next digit of our result is 2. 
Result so far: 16969.2
If we subtract 102 from 130, we get 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 8:
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: 16969.25
Subtracting 255 from 280 leaves us 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.

Going ahead to step 9:
If we divide 250 by 51, we get 4 and a remainder of 46.
The number 4 becomes the next digit in our result. 
Result so far: 16969.254
Subtracting 204 from 250 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 10:
51 goes into 460 9 times with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 16969.2549
Subtracting 459 from 460 leaves us 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 11:
10 divided by 51 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 16969.2549
Subtracting 0 from 10 leaves us 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 12:
If we divide 100 by 51, we get 1 and a remainder of 49.
Record the quotient 1 as the next digit in the result. 
Result so far: 16969.254901
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.

Advancing to step 13:
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: 16969.2549019
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.

Let's proceed to step 14:
If we divide 310 by 51, we get 6 and a remainder of 4.
The next digit of our result is 6. 
Result so far: 16969.25490196
The remainder is 4 after subtracting 306 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 16969.25490196, with a leftover of 4e-09.