961021 divided by 13 
We want to figure out the number of times 961021 can be divided by 13.

Advancing to step 1:
13 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 13

Advancing to step 2:
13 goes into 96 7 times with a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 91 from 96 and we're left with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 13

Going ahead to step 3:
The number 13 fits into 51 3 times, leaving a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 73.0
The remainder is 12 after subtracting 39 from 51.
Append the next digit (0) from the dividend to 12 and continue with: 120 / 13

On to step 4:
13 goes into 120 9 times with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 739.0
Deduct 117 from 120 and we're left with 3.
Include the next digit (2) from the dividend after 3, then repeat: 32 / 13

Let's proceed to step 5:
If we divide 32 by 13, we get 2 and a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 7392.0
If we subtract 26 from 32, we get 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 13

Let's proceed to step 6:
61 divided by 13 is 4 with a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 73924.0
Deduct 52 from 61 and we're left 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.

Let's proceed to step 7:
When dividing 90 by 13, we get 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 73924.6
Subtracting 78 from 90 leaves us 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.

Advancing to step 8:
13 can be fit into 120 9 times, resulting in a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 73924.69
Subtracting 117 from 120 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 9:
If we divide 30 by 13, we get 2 and a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 73924.692
The remainder is 4 after subtracting 26 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
If we divide 40 by 13, we get 3 and a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 73924.6923
If we take 39 away from 40, we end up 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.

Step 11:
When dividing 10 by 13, we get 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 73924.6923
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 12:
100 divided by 13 is 7 with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 73924.692307
Subtract 91 from 100 to get 9.
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 13:
13 goes into 90 6 times with a remainder of 12.
The next digit of our result is 6. 
Result so far: 73924.6923076
The remainder is 12 after subtracting 78 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 14:
13 goes into 120 9 times with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 73924.69230769
Subtracting 117 from 120 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Our division results in 73924.69230769 with a remaining 3e-09.