81506525 divided by 397 
Our goal is to divide 81506525 by 397.

Step 1:
When dividing 8 by 397, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 397

Let's proceed to step 2:
When dividing 81 by 397, we get 0 with a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Fetch the next digit (5) from the dividend, attach it to 81 and continue: 815 / 397

Going ahead to step 3:
815 divided by 397 is 2 with a remainder of 21.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 21 after subtracting 794 from 815.
Take the next digit (0) from the dividend and append it to 21, then repeat: 210 / 397

Advancing to step 4:
210 divided by 397 is 0 with a remainder of 210.
Put 0 as the next digit of the answer. 
Result so far: 20.0
If we subtract 0 from 210, we get 210.
Include the next digit (6) from the dividend after 210, then repeat: 2106 / 397

On to step 5:
The number 397 fits into 2106 5 times, leaving a remainder of 121.
Record the quotient 5 as the next digit in the result. 
Result so far: 205.0
Subtract 1985 from 2106 to get 121.
Bring next digit (5) of the dividend behind the 121 and repeat the process: 1215 / 397

Let's proceed to step 6:
397 can be fit into 1215 3 times, resulting in a remainder of 24.
Record the quotient 3 as the next digit in the result. 
Result so far: 2053.0
Subtracting 1191 from 1215 leaves us with 24.
Append the next digit (2) from the dividend to 24 and continue with: 242 / 397

Moving on to step 7:
397 can be fit into 242 0 times, resulting in a remainder of 242.
Use 0 as the next digit of our solution. 
Result so far: 20530.0
Deduct 0 from 242 and we're left with 242.
Fetch the next digit (5) from the dividend, attach it to 242 and continue: 2425 / 397

Let's proceed to step 8:
The number 397 fits into 2425 6 times, leaving a remainder of 43.
The next digit of our result is 6. 
Result so far: 205306.0
Subtract 2382 from 2425 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 9:
397 can be fit into 430 1 times, resulting in a remainder of 33.
The number 1 becomes the next digit in our result. 
Result so far: 205306.1
If we subtract 397 from 430, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 10:
The number 397 fits into 330 0 times, leaving a remainder of 330.
The next digit of our result is 0. 
Result so far: 205306.1
The remainder is 330 after subtracting 0 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Step 11:
397 can be fit into 3300 8 times, resulting in a remainder of 124.
Put 8 as the next digit of the answer. 
Result so far: 205306.108
The remainder is 124 after subtracting 3176 from 3300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Going ahead to step 12:
1240 divided by 397 is 3 with a remainder of 49.
Record the quotient 3 as the next digit in the result. 
Result so far: 205306.1083
If we take 1191 away from 1240, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 13:
The number 397 fits into 490 1 times, leaving a remainder of 93.
Use 1 as the next digit of our solution. 
Result so far: 205306.10831
Subtract 397 from 490 to get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Moving on to step 14:
397 goes into 930 2 times with a remainder of 136.
Write down 2 as next digit of the result. 
Result so far: 205306.108312
Subtracting 794 from 930 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Advancing to step 15:
397 can be fit into 1360 3 times, resulting in a remainder of 169.
The number 3 becomes the next digit in our result. 
Result so far: 205306.1083123
The remainder is 169 after subtracting 1191 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Moving on to step 16:
If we divide 1690 by 397, we get 4 and a remainder of 102.
Use 4 as the next digit of our solution. 
Result so far: 205306.10831234
Subtracting 1588 from 1690 leaves us with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

The final result is 205306.10831234 with a remainder of 1.02e-07.