We look at the division of 26591511 by 349 
The aim is to understand the frequency of 349 in 26591511.

Advancing to step 1:
2 divided by 349 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 349

Moving on to step 2:
26 divided by 349 is 0 with a remainder of 26.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 26 and we're left with 26.
Append the next digit (5) from the dividend to 26 and continue with: 265 / 349

Moving on to step 3:
If we divide 265 by 349, we get 0 and a remainder of 265.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 265 to get 265.
Take the next digit (9) from the dividend and append it to 265, then repeat: 2659 / 349

Step 4:
The number 349 fits into 2659 7 times, leaving a remainder of 216.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtracting 2443 from 2659 leaves us with 216.
Append the next digit (1) from the dividend to 216 and continue with: 2161 / 349

On to step 5:
2161 divided by 349 is 6 with a remainder of 67.
Use 6 as the next digit of our solution. 
Result so far: 76.0
The remainder is 67 after subtracting 2094 from 2161.
Take the next digit (5) from the dividend and append it to 67, then repeat: 675 / 349

Step 6:
The number 349 fits into 675 1 times, leaving a remainder of 326.
Write down 1 as next digit of the result. 
Result so far: 761.0
Subtracting 349 from 675 leaves us with 326.
Bring next digit (1) of the dividend behind the 326 and repeat the process: 3261 / 349

Advancing to step 7:
When dividing 3261 by 349, we get 9 with a remainder of 120.
Put 9 as the next digit of the answer. 
Result so far: 7619.0
The remainder is 120 after subtracting 3141 from 3261.
Take the next digit (1) from the dividend and append it to 120, then repeat: 1201 / 349

Going ahead to step 8:
349 goes into 1201 3 times with a remainder of 154.
Record the quotient 3 as the next digit in the result. 
Result so far: 76193.0
Subtract 1047 from 1201 to get 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Moving on to step 9:
If we divide 1540 by 349, we get 4 and a remainder of 144.
The next digit of our result is 4. 
Result so far: 76193.4
If we take 1396 away from 1540, we end up with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

On to step 10:
349 goes into 1440 4 times with a remainder of 44.
Record the quotient 4 as the next digit in the result. 
Result so far: 76193.44
If we take 1396 away from 1440, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final result is 76193.44 with a remainder of 0.044.