Let's divide 403575 by 51
We're looking to find how many times 51 goes into 403575.

Going ahead to step 1:
51 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 51

On to step 2:
When dividing 40 by 51, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Fetch the next digit (3) from the dividend, attach it to 40 and continue: 403 / 51

Going ahead to step 3:
The number 51 fits into 403 7 times, leaving a remainder of 46.
The next digit of our result is 7. 
Result so far: 7.0
If we take 357 away from 403, we end up with 46.
Include the next digit (5) from the dividend after 46, then repeat: 465 / 51

On to step 4:
51 goes into 465 9 times with a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 79.0
Subtract 459 from 465 to get 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 51

Going ahead to step 5:
If we divide 67 by 51, we get 1 and a remainder of 16.
Record the quotient 1 as the next digit in the result. 
Result so far: 791.0
The remainder is 16 after subtracting 51 from 67.
Append the next digit (5) from the dividend to 16 and continue with: 165 / 51

Step 6:
When dividing 165 by 51, we get 3 with a remainder of 12.
Write down 3 as next digit of the result. 
Result so far: 7913.0
Subtract 153 from 165 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.

Let's proceed to step 7:
51 can be fit into 120 2 times, resulting in a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 7913.2
Subtracting 102 from 120 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 8:
The number 51 fits into 180 3 times, leaving a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 7913.23
If we take 153 away from 180, we end up 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.

Step 9:
51 can be fit into 270 5 times, resulting in a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 7913.235
If we take 255 away from 270, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 10:
150 divided by 51 is 2 with a remainder of 48.
The next digit of our result is 2. 
Result so far: 7913.2352
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:
51 goes into 480 9 times with a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 7913.23529
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.

Let's proceed to step 12:
51 goes into 210 4 times with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 7913.235294
Deduct 204 from 210 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 13:
51 goes into 60 1 times with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 7913.2352941
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.

Advancing to step 14:
90 divided by 51 is 1 with a remainder of 39.
The next digit of our result is 1. 
Result so far: 7913.23529411
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.

Our division results in 7913.23529411 with a remaining 3.9e-08.