81488165 divided by 13 
We want to figure out the number of times 81488165 can be divided by 13.

Going ahead to step 1:
The number 13 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 13

Advancing to step 2:
81 divided by 13 is 6 with a remainder of 3.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
The remainder is 3 after subtracting 78 from 81.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 13

Step 3:
If we divide 34 by 13, we get 2 and a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 62.0
If we take 26 away from 34, we end up with 8.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 13

Going ahead to step 4:
13 goes into 88 6 times with a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 626.0
If we take 78 away from 88, we end up with 10.
Include the next digit (8) from the dividend after 10, then repeat: 108 / 13

Let's proceed to step 5:
When dividing 108 by 13, we get 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 6268.0
Deduct 104 from 108 and we're left with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 13

On to step 6:
13 can be fit into 41 3 times, resulting in a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 62683.0
If we subtract 39 from 41, we get 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 13

Let's proceed to step 7:
When dividing 26 by 13, we get 2 with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 626832.0
Subtracting 26 from 26 leaves us with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 13

Going ahead to step 8:
13 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 6268320.0
Deduct 0 from 5 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 9:
50 divided by 13 is 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 6268320.3
Deduct 39 from 50 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 10:
If we divide 110 by 13, we get 8 and a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 6268320.38
Deduct 104 from 110 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.

Let's proceed to step 11:
If we divide 60 by 13, we get 4 and a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 6268320.384
Subtract 52 from 60 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 12:
80 divided by 13 is 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 6268320.3846
Subtracting 78 from 80 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 13:
The number 13 fits into 20 1 times, leaving a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 6268320.38461
If we subtract 13 from 20, we get 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 14:
13 can be fit into 70 5 times, resulting in a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 6268320.384615
Subtracting 65 from 70 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 15:
13 can be fit into 50 3 times, resulting in a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 6268320.3846153
Subtracting 39 from 50 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 16:
13 goes into 110 8 times with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 6268320.38461538
Subtracting 104 from 110 leaves us 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.

Our division results in 6268320.38461538 with a remaining 6e-09.