We look at the division of 400437 by 26 
Let's see how many times 26 fits into 400437.

Advancing to step 1:
When dividing 4 by 26, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 26

Moving on to step 2:
26 can be fit into 40 1 times, resulting in a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 26 away from 40, we end up with 14.
Include the next digit (0) from the dividend after 14, then repeat: 140 / 26

Going ahead to step 3:
The number 26 fits into 140 5 times, leaving a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtracting 130 from 140 leaves us with 10.
Bring next digit (4) of the dividend behind the 10 and repeat the process: 104 / 26

Moving on to step 4:
104 divided by 26 is 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 154.0
Subtracting 104 from 104 leaves us with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 26

Let's proceed to step 5:
26 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 1540.0
Subtract 0 from 3 to get 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 26

Going ahead to step 6:
The number 26 fits into 37 1 times, leaving a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 15401.0
Deduct 26 from 37 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 7:
When dividing 110 by 26, we get 4 with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 15401.4
If we subtract 104 from 110, 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 8:
60 divided by 26 is 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 15401.42
Subtract 52 from 60 to get 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 9:
When dividing 80 by 26, we get 3 with a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 15401.423
If we subtract 78 from 80, we get 2.
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 10:
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: 15401.423
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 11:
200 divided by 26 is 7 with a remainder of 18.
The next digit of our result is 7. 
Result so far: 15401.42307
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.

Let's proceed to step 12:
26 can be fit into 180 6 times, resulting in a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 15401.423076
Subtract 156 from 180 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 13:
26 goes into 240 9 times with a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 15401.4230769
Subtract 234 from 240 to 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.

Let's proceed to step 14:
When dividing 60 by 26, we get 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 15401.42307692
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.

The final outcome is 15401.42307692, with a leftover of 8e-09.