We look at the division of 81512585 by 49 
We're looking to find how many times 49 goes into 81512585.

Let's proceed to step 1:
49 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 49

Advancing to step 2:
The number 49 fits into 81 1 times, leaving a remainder of 32.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 49 from 81 to get 32.
Grab the next digit (5) from the dividend, add it to 32, then carry on: 325 / 49

Let's proceed to step 3:
325 divided by 49 is 6 with a remainder of 31.
Put 6 as the next digit of the answer. 
Result so far: 16.0
If we take 294 away from 325, we end up with 31.
Grab the next digit (1) from the dividend, add it to 31, then carry on: 311 / 49

On to step 4:
49 can be fit into 311 6 times, resulting in a remainder of 17.
Record the quotient 6 as the next digit in the result. 
Result so far: 166.0
Subtracting 294 from 311 leaves us with 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 49

Moving on to step 5:
49 goes into 172 3 times with a remainder of 25.
The next digit of our result is 3. 
Result so far: 1663.0
If we subtract 147 from 172, we get 25.
Append the next digit (5) from the dividend to 25 and continue with: 255 / 49

Let's proceed to step 6:
If we divide 255 by 49, we get 5 and a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 16635.0
If we subtract 245 from 255, we get 10.
Bring next digit (8) of the dividend behind the 10 and repeat the process: 108 / 49

Going ahead to step 7:
The number 49 fits into 108 2 times, leaving a remainder of 10.
The next digit of our result is 2. 
Result so far: 166352.0
Subtract 98 from 108 to get 10.
Include the next digit (5) from the dividend after 10, then repeat: 105 / 49

Step 8:
49 can be fit into 105 2 times, resulting in a remainder of 7.
Record the quotient 2 as the next digit in the result. 
Result so far: 1663522.0
Deduct 98 from 105 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 9:
49 goes into 70 1 times with a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 1663522.1
If we take 49 away from 70, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 10:
When dividing 210 by 49, we get 4 with a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 1663522.14
Subtract 196 from 210 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 11:
49 can be fit into 140 2 times, resulting in a remainder of 42.
Record the quotient 2 as the next digit in the result. 
Result so far: 1663522.142
Deduct 98 from 140 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 12:
49 can be fit into 420 8 times, resulting in a remainder of 28.
Use 8 as the next digit of our solution. 
Result so far: 1663522.1428
If we take 392 away from 420, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 13:
49 goes into 280 5 times with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 1663522.14285
The remainder is 35 after subtracting 245 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 14:
49 goes into 350 7 times with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 1663522.142857
Subtracting 343 from 350 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 15:
49 can be fit into 70 1 times, resulting in a remainder of 21.
Write down 1 as next digit of the result. 
Result so far: 1663522.1428571
Deduct 49 from 70 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 16:
49 goes into 210 4 times with a remainder of 14.
The next digit of our result is 4. 
Result so far: 1663522.14285714
Deduct 196 from 210 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 1663522.14285714 and a remainder of 1.4e-08.