Let's divide 887661 by 13
The aim is to understand the frequency of 13 in 887661.

Going ahead to step 1:
13 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 13

On to step 2:
13 goes into 88 6 times with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Deduct 78 from 88 and we're left with 10.
Fetch the next digit (7) from the dividend, attach it to 10 and continue: 107 / 13

Let's proceed to step 3:
If we divide 107 by 13, we get 8 and a remainder of 3.
The number 8 becomes the next digit in our result. 
Result so far: 68.0
Subtracting 104 from 107 leaves us with 3.
Take the next digit (6) from the dividend and append it to 3, then repeat: 36 / 13

Step 4:
36 divided by 13 is 2 with a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 682.0
Subtract 26 from 36 to get 10.
Bring next digit (6) of the dividend behind the 10 and repeat the process: 106 / 13

Let's proceed to step 5:
When dividing 106 by 13, we get 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 6828.0
Deduct 104 from 106 and we're left with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 13

Let's proceed to step 6:
The number 13 fits into 21 1 times, leaving a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 68281.0
The remainder is 8 after subtracting 13 from 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 7:
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: 68281.6
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.

Let's proceed to step 8:
20 divided by 13 is 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 68281.61
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.

Let's proceed to step 9:
13 goes into 70 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 68281.615
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.

Step 10:
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: 68281.6153
If we take 39 away from 50, we end up 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.

Going ahead to step 11:
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: 68281.61538
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.

On to step 12:
60 divided by 13 is 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 68281.615384
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.

Step 13:
80 divided by 13 is 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 68281.6153846
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 14:
20 divided by 13 is 1 with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 68281.61538461
Subtract 13 from 20 to 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.

The final result is 68281.61538461 with a remainder of 7e-09.