785157 ÷ 51 
Let's see how many times 51 fits into 785157.

On to step 1:
51 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 51

Step 2:
51 can be fit into 78 1 times, resulting in a remainder of 27.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 51 from 78, we get 27.
Grab the next digit (5) from the dividend, add it to 27, then carry on: 275 / 51

Let's proceed to step 3:
275 divided by 51 is 5 with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Subtracting 255 from 275 leaves us with 20.
Bring next digit (1) of the dividend behind the 20 and repeat the process: 201 / 51

Step 4:
51 goes into 201 3 times with a remainder of 48.
The next digit of our result is 3. 
Result so far: 153.0
Subtracting 153 from 201 leaves us with 48.
Bring next digit (5) of the dividend behind the 48 and repeat the process: 485 / 51

Step 5:
If we divide 485 by 51, we get 9 and a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 1539.0
If we subtract 459 from 485, we get 26.
Grab the next digit (7) from the dividend, add it to 26, then carry on: 267 / 51

Advancing to step 6:
When dividing 267 by 51, we get 5 with a remainder of 12.
The next digit of our result is 5. 
Result so far: 15395.0
Subtract 255 from 267 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 7:
51 can be fit into 120 2 times, resulting in a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 15395.2
Subtract 102 from 120 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 8:
If we divide 180 by 51, we get 3 and a remainder of 27.
Write down 3 as next digit of the result. 
Result so far: 15395.23
Deduct 153 from 180 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 9:
If we divide 270 by 51, we get 5 and a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 15395.235
If we subtract 255 from 270, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 10:
The number 51 fits into 150 2 times, leaving a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 15395.2352
Subtract 102 from 150 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 11:
If we divide 480 by 51, we get 9 and a remainder of 21.
The next digit of our result is 9. 
Result so far: 15395.23529
The remainder is 21 after subtracting 459 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 12:
If we divide 210 by 51, we get 4 and a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 15395.235294
If we subtract 204 from 210, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 13:
When dividing 60 by 51, we get 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 15395.2352941
If we subtract 51 from 60, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 14:
51 goes into 90 1 times with a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 15395.23529411
Subtracting 51 from 90 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

After the division, we end up with 15395.23529411 and a remainder of 3.9e-08.