672138 ÷ 26 
The aim is to understand the frequency of 26 in 672138.

Advancing to step 1:
6 divided by 26 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 26

Advancing to step 2:
67 divided by 26 is 2 with a remainder of 15.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 52 from 67 to get 15.
Grab the next digit (2) from the dividend, add it to 15, then carry on: 152 / 26

On to step 3:
When dividing 152 by 26, we get 5 with a remainder of 22.
The next digit of our result is 5. 
Result so far: 25.0
Deduct 130 from 152 and we're left with 22.
Fetch the next digit (1) from the dividend, attach it to 22 and continue: 221 / 26

Going ahead to step 4:
The number 26 fits into 221 8 times, leaving a remainder of 13.
Record the quotient 8 as the next digit in the result. 
Result so far: 258.0
Deduct 208 from 221 and we're left with 13.
Take the next digit (3) from the dividend and append it to 13, then repeat: 133 / 26

Step 5:
133 divided by 26 is 5 with a remainder of 3.
The next digit of our result is 5. 
Result so far: 2585.0
Deduct 130 from 133 and we're left with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 26

Let's proceed to step 6:
26 can be fit into 38 1 times, resulting in a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 25851.0
If we take 26 away from 38, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 7:
If we divide 120 by 26, we get 4 and a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 25851.4
The remainder is 16 after subtracting 104 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 8:
If we divide 160 by 26, we get 6 and a remainder of 4.
The next digit of our result is 6. 
Result so far: 25851.46
The remainder is 4 after subtracting 156 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
26 can be fit into 40 1 times, resulting in a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 25851.461
The remainder is 14 after subtracting 26 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
If we divide 140 by 26, we get 5 and a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 25851.4615
Subtract 130 from 140 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 11:
When dividing 100 by 26, we get 3 with a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 25851.46153
Deduct 78 from 100 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 12:
When dividing 220 by 26, we get 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 25851.461538
Deduct 208 from 220 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 13:
26 goes into 120 4 times with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 25851.4615384
Subtracting 104 from 120 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 14:
If we divide 160 by 26, we get 6 and a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 25851.46153846
The remainder is 4 after subtracting 156 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 25851.46153846 and a remainder of 4e-09.