We look at the division of 86236866 by 260 
The aim is to understand the frequency of 260 in 86236866.

Step 1:
260 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the 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 / 260

Step 2:
The number 260 fits into 86 0 times, leaving a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Grab the next digit (2) from the dividend, add it to 86, then carry on: 862 / 260

Let's proceed to step 3:
The number 260 fits into 862 3 times, leaving a remainder of 82.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 780 from 862 leaves us with 82.
Include the next digit (3) from the dividend after 82, then repeat: 823 / 260

Advancing to step 4:
If we divide 823 by 260, we get 3 and a remainder of 43.
Record the quotient 3 as the next digit in the result. 
Result so far: 33.0
If we subtract 780 from 823, we get 43.
Append the next digit (6) from the dividend to 43 and continue with: 436 / 260

Step 5:
When dividing 436 by 260, we get 1 with a remainder of 176.
The next digit of our result is 1. 
Result so far: 331.0
Subtract 260 from 436 to get 176.
Bring next digit (8) of the dividend behind the 176 and repeat the process: 1768 / 260

Going ahead to step 6:
260 goes into 1768 6 times with a remainder of 208.
Write down 6 as next digit of the result. 
Result so far: 3316.0
Subtracting 1560 from 1768 leaves us with 208.
Fetch the next digit (6) from the dividend, attach it to 208 and continue: 2086 / 260

Let's proceed to step 7:
260 can be fit into 2086 8 times, resulting in a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 33168.0
If we take 2080 away from 2086, we end up with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 260

On to step 8:
When dividing 66 by 260, we get 0 with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 331680.0
The remainder is 66 after subtracting 0 from 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 9:
260 goes into 660 2 times with a remainder of 140.
Use 2 as the next digit of our solution. 
Result so far: 331680.2
If we subtract 520 from 660, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 10:
260 can be fit into 1400 5 times, resulting in a remainder of 100.
The number 5 becomes the next digit in our result. 
Result so far: 331680.25
Subtracting 1300 from 1400 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 11:
260 goes into 1000 3 times with a remainder of 220.
Put 3 as the next digit of the answer. 
Result so far: 331680.253
Subtracting 780 from 1000 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Let's proceed to step 12:
When dividing 2200 by 260, we get 8 with a remainder of 120.
The number 8 becomes the next digit in our result. 
Result so far: 331680.2538
Deduct 2080 from 2200 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 13:
260 can be fit into 1200 4 times, resulting in a remainder of 160.
The next digit of our result is 4. 
Result so far: 331680.25384
The remainder is 160 after subtracting 1040 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 14:
If we divide 1600 by 260, we get 6 and a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 331680.253846
Subtract 1560 from 1600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 15:
When dividing 400 by 260, we get 1 with a remainder of 140.
Use 1 as the next digit of our solution. 
Result so far: 331680.2538461
If we subtract 260 from 400, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Advancing to step 16:
The number 260 fits into 1400 5 times, leaving a remainder of 100.
Write down 5 as next digit of the result. 
Result so far: 331680.25384615
If we subtract 1300 from 1400, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final outcome is 331680.25384615, with a leftover of 1e-07.