18015398 ÷ 26 
The aim is to understand the frequency of 26 in 18015398.

Advancing to step 1:
26 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 26

Going ahead to step 2:
26 can be fit into 18 0 times, resulting in a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Append the next digit (0) from the dividend to 18 and continue with: 180 / 26

Moving on to step 3:
When dividing 180 by 26, we get 6 with a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 156 from 180 leaves us with 24.
Append the next digit (1) from the dividend to 24 and continue with: 241 / 26

Step 4:
26 goes into 241 9 times with a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 69.0
If we take 234 away from 241, we end up with 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 26

Going ahead to step 5:
26 can be fit into 75 2 times, resulting in a remainder of 23.
Use 2 as the next digit of our solution. 
Result so far: 692.0
Deduct 52 from 75 and we're left with 23.
Append the next digit (3) from the dividend to 23 and continue with: 233 / 26

Advancing to step 6:
If we divide 233 by 26, we get 8 and a remainder of 25.
Put 8 as the next digit of the answer. 
Result so far: 6928.0
If we subtract 208 from 233, we get 25.
Append the next digit (9) from the dividend to 25 and continue with: 259 / 26

Going ahead to step 7:
If we divide 259 by 26, we get 9 and a remainder of 25.
Write down 9 as next digit of the result. 
Result so far: 69289.0
Subtracting 234 from 259 leaves us with 25.
Fetch the next digit (8) from the dividend, attach it to 25 and continue: 258 / 26

Step 8:
The number 26 fits into 258 9 times, leaving a remainder of 24.
The next digit of our result is 9. 
Result so far: 692899.0
If we take 234 away from 258, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 9:
240 divided by 26 is 9 with a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 692899.9
If we take 234 away from 240, we end up 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.

Moving on to step 10:
60 divided by 26 is 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 692899.92
Subtracting 52 from 60 leaves us 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 11:
The number 26 fits into 80 3 times, leaving a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 692899.923
Deduct 78 from 80 and we're left 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.

Going ahead to step 12:
20 divided by 26 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 692899.923
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 13:
When dividing 200 by 26, we get 7 with a remainder of 18.
Put 7 as the next digit of the answer. 
Result so far: 692899.92307
Subtracting 182 from 200 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 14:
When dividing 180 by 26, we get 6 with a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 692899.923076
If we take 156 away from 180, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 15:
The number 26 fits into 240 9 times, leaving a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 692899.9230769
The remainder is 6 after subtracting 234 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 16:
When dividing 60 by 26, we get 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 692899.92307692
Subtracting 52 from 60 leaves us 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.

In conclusion, the division gives 692899.92307692 with a balance of 8e-09.