61210079 divided by 13 
We want to figure out the number of times 61210079 can be divided by 13.

Step 1:
The number 13 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 13

Let's proceed to step 2:
61 divided by 13 is 4 with a remainder of 9.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 52 away from 61, we end up with 9.
Take the next digit (2) from the dividend and append it to 9, then repeat: 92 / 13

Moving on to step 3:
13 goes into 92 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 47.0
Deduct 91 from 92 and we're left with 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 13

Moving on to step 4:
The number 13 fits into 11 0 times, leaving a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 470.0
If we take 0 away from 11, we end up with 11.
Bring next digit (0) of the dividend behind the 11 and repeat the process: 110 / 13

On to step 5:
13 can be fit into 110 8 times, resulting in a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 4708.0
Deduct 104 from 110 and we're left with 6.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 13

Going ahead to step 6:
If we divide 60 by 13, we get 4 and a remainder of 8.
The next digit of our result is 4. 
Result so far: 47084.0
If we subtract 52 from 60, we get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 13

Moving on to step 7:
13 can be fit into 87 6 times, resulting in a remainder of 9.
The number 6 becomes the next digit in our result. 
Result so far: 470846.0
If we subtract 78 from 87, we get 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 13

Let's proceed to step 8:
The number 13 fits into 99 7 times, leaving a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 4708467.0
The remainder is 8 after subtracting 91 from 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
If we divide 80 by 13, we get 6 and a remainder of 2.
The next digit of our result is 6. 
Result so far: 4708467.6
If we subtract 78 from 80, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 10:
13 can be fit into 20 1 times, resulting in a remainder of 7.
The next digit of our result is 1. 
Result so far: 4708467.61
Deduct 13 from 20 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.

On to step 11:
13 can be fit into 70 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 4708467.615
If we take 65 away from 70, we end up 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.

Step 12:
13 can be fit into 50 3 times, resulting in a remainder of 11.
The next digit of our result is 3. 
Result so far: 4708467.6153
The remainder is 11 after subtracting 39 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 13:
The number 13 fits into 110 8 times, leaving a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 4708467.61538
The remainder is 6 after subtracting 104 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 14:
60 divided by 13 is 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 4708467.615384
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.

Moving on to step 15:
13 goes into 80 6 times with a remainder of 2.
The next digit of our result is 6. 
Result so far: 4708467.6153846
The remainder is 2 after subtracting 78 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 16:
13 can be fit into 20 1 times, resulting in a remainder of 7.
The next digit of our result is 1. 
Result so far: 4708467.61538461
Deduct 13 from 20 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.

The final outcome is 4708467.61538461, with a leftover of 7e-09.