We look at the division of 52517816 by 665 
Let's see how many times 665 fits into 52517816.

Moving on to step 1:
When dividing 5 by 665, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 665

Step 2:
665 goes into 52 0 times with a remainder of 52.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 52 leaves us with 52.
Append the next digit (5) from the dividend to 52 and continue with: 525 / 665

On to step 3:
The number 665 fits into 525 0 times, leaving a remainder of 525.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 525, we get 525.
Include the next digit (1) from the dividend after 525, then repeat: 5251 / 665

Moving on to step 4:
When dividing 5251 by 665, we get 7 with a remainder of 596.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 4655 from 5251, we get 596.
Fetch the next digit (7) from the dividend, attach it to 596 and continue: 5967 / 665

Step 5:
5967 divided by 665 is 8 with a remainder of 647.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
If we subtract 5320 from 5967, we get 647.
Take the next digit (8) from the dividend and append it to 647, then repeat: 6478 / 665

On to step 6:
When dividing 6478 by 665, we get 9 with a remainder of 493.
The next digit of our result is 9. 
Result so far: 789.0
If we take 5985 away from 6478, we end up with 493.
Fetch the next digit (1) from the dividend, attach it to 493 and continue: 4931 / 665

Advancing to step 7:
665 can be fit into 4931 7 times, resulting in a remainder of 276.
Put 7 as the next digit of the answer. 
Result so far: 7897.0
Subtract 4655 from 4931 to get 276.
Grab the next digit (6) from the dividend, add it to 276, then carry on: 2766 / 665

Step 8:
When dividing 2766 by 665, we get 4 with a remainder of 106.
Write down 4 as next digit of the result. 
Result so far: 78974.0
The remainder is 106 after subtracting 2660 from 2766.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Moving on to step 9:
665 goes into 1060 1 times with a remainder of 395.
Write down 1 as next digit of the result. 
Result so far: 78974.1
The remainder is 395 after subtracting 665 from 1060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Advancing to step 10:
When dividing 3950 by 665, we get 5 with a remainder of 625.
The number 5 becomes the next digit in our result. 
Result so far: 78974.15
Deduct 3325 from 3950 and we're left with 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Step 11:
665 can be fit into 6250 9 times, resulting in a remainder of 265.
Put 9 as the next digit of the answer. 
Result so far: 78974.159
If we subtract 5985 from 6250, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Let's proceed to step 12:
665 can be fit into 2650 3 times, resulting in a remainder of 655.
Use 3 as the next digit of our solution. 
Result so far: 78974.1593
If we take 1995 away from 2650, we end up with 655.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6550, and continue the process.

Advancing to step 13:
When dividing 6550 by 665, we get 9 with a remainder of 565.
Use 9 as the next digit of our solution. 
Result so far: 78974.15939
Subtract 5985 from 6550 to get 565.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

Advancing to step 14:
665 goes into 5650 8 times with a remainder of 330.
Put 8 as the next digit of the answer. 
Result so far: 78974.159398
The remainder is 330 after subtracting 5320 from 5650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Advancing to step 15:
665 goes into 3300 4 times with a remainder of 640.
The number 4 becomes the next digit in our result. 
Result so far: 78974.1593984
Subtract 2660 from 3300 to get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Moving on to step 16:
When dividing 6400 by 665, we get 9 with a remainder of 415.
Write down 9 as next digit of the result. 
Result so far: 78974.15939849
Subtracting 5985 from 6400 leaves us with 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

After the division, we end up with 78974.15939849 and a remainder of 4.15e-07.