We divide 71125777 by 13
The aim is to understand the frequency of 13 in 71125777.

Going ahead to step 1:
The number 13 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 13

Going ahead to step 2:
13 can be fit into 71 5 times, resulting in a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 65 from 71 leaves us with 6.
Append the next digit (1) from the dividend to 6 and continue with: 61 / 13

Let's proceed to step 3:
13 can be fit into 61 4 times, resulting in a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 54.0
Deduct 52 from 61 and we're left with 9.
Include the next digit (2) from the dividend after 9, then repeat: 92 / 13

Step 4:
The number 13 fits into 92 7 times, leaving a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 547.0
The remainder is 1 after subtracting 91 from 92.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 13

On to step 5:
The number 13 fits into 15 1 times, leaving a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 5471.0
Subtract 13 from 15 to get 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 13

Going ahead to step 6:
13 goes into 27 2 times with a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 54712.0
Subtract 26 from 27 to get 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 13

Advancing to step 7:
13 goes into 17 1 times with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 547121.0
Deduct 13 from 17 and we're left with 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 13

Let's proceed to step 8:
The number 13 fits into 47 3 times, leaving a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 5471213.0
The remainder is 8 after subtracting 39 from 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
13 can be fit into 80 6 times, resulting in a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 5471213.6
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.

Advancing to step 10:
20 divided by 13 is 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 5471213.61
If we take 13 away from 20, we end up 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 11:
13 can be fit into 70 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 5471213.615
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.

Let's proceed to step 12:
13 goes into 50 3 times with a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 5471213.6153
If we subtract 39 from 50, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 13:
13 can be fit into 110 8 times, resulting in a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 5471213.61538
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.

Advancing to step 14:
13 goes into 60 4 times with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 5471213.615384
If we take 52 away from 60, we end up with 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:
If we divide 80 by 13, we get 6 and a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 5471213.6153846
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.

Step 16:
When dividing 20 by 13, we get 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 5471213.61538461
If we take 13 away from 20, we end up 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.

In conclusion, the division gives 5471213.61538461 with a balance of 7e-09.