51276838 ÷ 26 
The aim is to understand the frequency of 26 in 51276838.

Going ahead to step 1:
The number 26 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 26

Moving on to step 2:
26 can be fit into 51 1 times, resulting in a remainder of 25.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 26 from 51 to get 25.
Grab the next digit (2) from the dividend, add it to 25, then carry on: 252 / 26

Advancing to step 3:
The number 26 fits into 252 9 times, leaving a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
If we take 234 away from 252, we end up with 18.
Fetch the next digit (7) from the dividend, attach it to 18 and continue: 187 / 26

Advancing to step 4:
The number 26 fits into 187 7 times, leaving a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 197.0
Subtracting 182 from 187 leaves us with 5.
Grab the next digit (6) from the dividend, add it to 5, then carry on: 56 / 26

Moving on to step 5:
26 goes into 56 2 times with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 1972.0
If we subtract 52 from 56, we get 4.
Bring next digit (8) of the dividend behind the 4 and repeat the process: 48 / 26

Let's proceed to step 6:
When dividing 48 by 26, we get 1 with a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 19721.0
Subtracting 26 from 48 leaves us with 22.
Fetch the next digit (3) from the dividend, attach it to 22 and continue: 223 / 26

Going ahead to step 7:
26 can be fit into 223 8 times, resulting in a remainder of 15.
Use 8 as the next digit of our solution. 
Result so far: 197218.0
If we subtract 208 from 223, we get 15.
Append the next digit (8) from the dividend to 15 and continue with: 158 / 26

On to step 8:
If we divide 158 by 26, we get 6 and a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 1972186.0
The remainder is 2 after subtracting 156 from 158.
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 9:
The number 26 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 1972186.0
Subtract 0 from 20 to 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.

On to step 10:
If we divide 200 by 26, we get 7 and a remainder of 18.
The next digit of our result is 7. 
Result so far: 1972186.07
Deduct 182 from 200 and we're left 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.

Advancing to step 11:
26 goes into 180 6 times with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 1972186.076
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 12:
When dividing 240 by 26, we get 9 with a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 1972186.0769
If we subtract 234 from 240, we get 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 13:
When dividing 60 by 26, we get 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 1972186.07692
Deduct 52 from 60 and we're left 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.

Let's proceed to step 14:
26 goes into 80 3 times with a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 1972186.076923
If we take 78 away from 80, we end up 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 15:
20 divided by 26 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 1972186.076923
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.

Moving on to step 16:
If we divide 200 by 26, we get 7 and a remainder of 18.
Record the quotient 7 as the next digit in the result. 
Result so far: 1972186.07692307
Deduct 182 from 200 and we're left 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.

The final outcome is 1972186.07692307, with a leftover of 1.8e-08.