We're dividing 81205231 by 525 
We want to figure out the number of times 81205231 can be divided by 525.

Going ahead to step 1:
8 divided by 525 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 525

Let's proceed to step 2:
When dividing 81 by 525, we get 0 with a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Fetch the next digit (2) from the dividend, attach it to 81 and continue: 812 / 525

Step 3:
If we divide 812 by 525, we get 1 and a remainder of 287.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 525 from 812 leaves us with 287.
Include the next digit (0) from the dividend after 287, then repeat: 2870 / 525

Going ahead to step 4:
If we divide 2870 by 525, we get 5 and a remainder of 245.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtracting 2625 from 2870 leaves us with 245.
Bring next digit (5) of the dividend behind the 245 and repeat the process: 2455 / 525

Moving on to step 5:
The number 525 fits into 2455 4 times, leaving a remainder of 355.
Put 4 as the next digit of the answer. 
Result so far: 154.0
The remainder is 355 after subtracting 2100 from 2455.
Append the next digit (2) from the dividend to 355 and continue with: 3552 / 525

On to step 6:
When dividing 3552 by 525, we get 6 with a remainder of 402.
The number 6 becomes the next digit in our result. 
Result so far: 1546.0
Subtracting 3150 from 3552 leaves us with 402.
Append the next digit (3) from the dividend to 402 and continue with: 4023 / 525

On to step 7:
525 goes into 4023 7 times with a remainder of 348.
Put 7 as the next digit of the answer. 
Result so far: 15467.0
If we subtract 3675 from 4023, we get 348.
Fetch the next digit (1) from the dividend, attach it to 348 and continue: 3481 / 525

Moving on to step 8:
When dividing 3481 by 525, we get 6 with a remainder of 331.
Write down 6 as next digit of the result. 
Result so far: 154676.0
Deduct 3150 from 3481 and we're left with 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Let's proceed to step 9:
If we divide 3310 by 525, we get 6 and a remainder of 160.
Record the quotient 6 as the next digit in the result. 
Result so far: 154676.6
Deduct 3150 from 3310 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 10:
The number 525 fits into 1600 3 times, leaving a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 154676.63
If we subtract 1575 from 1600, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 11:
525 can be fit into 250 0 times, resulting in a remainder of 250.
Record the quotient 0 as the next digit in the result. 
Result so far: 154676.63
If we subtract 0 from 250, we get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Let's proceed to step 12:
525 goes into 2500 4 times with a remainder of 400.
The number 4 becomes the next digit in our result. 
Result so far: 154676.6304
If we subtract 2100 from 2500, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 13:
When dividing 4000 by 525, we get 7 with a remainder of 325.
The number 7 becomes the next digit in our result. 
Result so far: 154676.63047
Subtracting 3675 from 4000 leaves us with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Step 14:
3250 divided by 525 is 6 with a remainder of 100.
Write down 6 as next digit of the result. 
Result so far: 154676.630476
If we take 3150 away from 3250, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 15:
525 goes into 1000 1 times with a remainder of 475.
The number 1 becomes the next digit in our result. 
Result so far: 154676.6304761
If we subtract 525 from 1000, we get 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Step 16:
The number 525 fits into 4750 9 times, leaving a remainder of 25.
The number 9 becomes the next digit in our result. 
Result so far: 154676.63047619
Subtracting 4725 from 4750 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.

The quotient of the division is 154676.63047619, and the remainder is 2.5e-08.