We look at the division of 126921 by 26 
Let's see how many times 26 fits into 126921.

Advancing to step 1:
When dividing 1 by 26, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 26

Advancing to step 2:
26 can be fit into 12 0 times, resulting in a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Bring next digit (6) of the dividend behind the 12 and repeat the process: 126 / 26

Advancing to step 3:
126 divided by 26 is 4 with a remainder of 22.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 104 from 126 and we're left with 22.
Append the next digit (9) from the dividend to 22 and continue with: 229 / 26

Advancing to step 4:
The number 26 fits into 229 8 times, leaving a remainder of 21.
Put 8 as the next digit of the answer. 
Result so far: 48.0
Deduct 208 from 229 and we're left with 21.
Append the next digit (2) from the dividend to 21 and continue with: 212 / 26

On to step 5:
If we divide 212 by 26, we get 8 and a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 488.0
Deduct 208 from 212 and we're left with 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 26

On to step 6:
If we divide 41 by 26, we get 1 and a remainder of 15.
The next digit of our result is 1. 
Result so far: 4881.0
Deduct 26 from 41 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
If we divide 150 by 26, we get 5 and a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 4881.5
Deduct 130 from 150 and we're left with 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 8:
26 goes into 200 7 times with a remainder of 18.
Write down 7 as next digit of the result. 
Result so far: 4881.57
The remainder is 18 after subtracting 182 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 9:
The number 26 fits into 180 6 times, leaving a remainder of 24.
The next digit of our result is 6. 
Result so far: 4881.576
Subtracting 156 from 180 leaves us 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 10:
The number 26 fits into 240 9 times, leaving a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 4881.5769
Deduct 234 from 240 and we're left 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.

Advancing to step 11:
26 goes into 60 2 times with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 4881.57692
If we take 52 away from 60, we end up 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.

Going ahead to step 12:
26 can be fit into 80 3 times, resulting in a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 4881.576923
Subtracting 78 from 80 leaves us 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 13:
26 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 4881.576923
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 14:
The number 26 fits into 200 7 times, leaving a remainder of 18.
Record the quotient 7 as the next digit in the result. 
Result so far: 4881.57692307
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.

The final outcome is 4881.57692307, with a leftover of 1.8e-08.