866446 ÷ 13 
Our goal is to divide 866446 by 13.

Let's proceed to step 1:
The number 13 fits into 8 0 times, leaving 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.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 13

Going ahead to step 2:
The number 13 fits into 86 6 times, leaving a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
The remainder is 8 after subtracting 78 from 86.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 13

Step 3:
If we divide 86 by 13, we get 6 and a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 66.0
The remainder is 8 after subtracting 78 from 86.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 13

Going ahead to step 4:
When dividing 84 by 13, we get 6 with a remainder of 6.
The next digit of our result is 6. 
Result so far: 666.0
Deduct 78 from 84 and we're left with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 13

Step 5:
64 divided by 13 is 4 with a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 6664.0
If we subtract 52 from 64, we get 12.
Grab the next digit (6) from the dividend, add it to 12, then carry on: 126 / 13

On to step 6:
When dividing 126 by 13, we get 9 with a remainder of 9.
The next digit of our result is 9. 
Result so far: 66649.0
The remainder is 9 after subtracting 117 from 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
13 goes into 90 6 times with a remainder of 12.
The next digit of our result is 6. 
Result so far: 66649.6
If we take 78 away from 90, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
When dividing 120 by 13, we get 9 with a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 66649.69
Subtract 117 from 120 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 9:
If we divide 30 by 13, we get 2 and a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 66649.692
Subtracting 26 from 30 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 10:
13 goes into 40 3 times with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 66649.6923
Deduct 39 from 40 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 11:
The number 13 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 66649.6923
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 12:
If we divide 100 by 13, we get 7 and a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 66649.692307
Subtracting 91 from 100 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 13:
13 can be fit into 90 6 times, resulting in a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 66649.6923076
If we take 78 away from 90, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 14:
If we divide 120 by 13, we get 9 and a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 66649.69230769
The remainder is 3 after subtracting 117 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The quotient of the division is 66649.69230769, and the remainder is 3e-09.