405531 divided by 26 
Let's see how many times 26 fits into 405531.

Going ahead to step 1:
The number 26 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 26

Moving on to step 2:
40 divided by 26 is 1 with a remainder of 14.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 14 after subtracting 26 from 40.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 26

Let's proceed to step 3:
145 divided by 26 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 15.0
The remainder is 15 after subtracting 130 from 145.
Append the next digit (5) from the dividend to 15 and continue with: 155 / 26

Step 4:
The number 26 fits into 155 5 times, leaving a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 155.0
The remainder is 25 after subtracting 130 from 155.
Take the next digit (3) from the dividend and append it to 25, then repeat: 253 / 26

On to step 5:
If we divide 253 by 26, we get 9 and a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 1559.0
If we take 234 away from 253, we end up with 19.
Take the next digit (1) from the dividend and append it to 19, then repeat: 191 / 26

Going ahead to step 6:
If we divide 191 by 26, we get 7 and a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 15597.0
Subtracting 182 from 191 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
26 can be fit into 90 3 times, resulting in a remainder of 12.
Use 3 as the next digit of our solution. 
Result so far: 15597.3
If we take 78 away from 90, 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 8:
120 divided by 26 is 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 15597.34
If we take 104 away from 120, we end up 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.

Let's proceed to step 9:
When dividing 160 by 26, we get 6 with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 15597.346
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.

Moving on to step 10:
The number 26 fits into 40 1 times, leaving a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 15597.3461
Subtracting 26 from 40 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 11:
26 can be fit into 140 5 times, resulting in a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 15597.34615
If we take 130 away from 140, we end up with 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 12:
The number 26 fits into 100 3 times, leaving a remainder of 22.
The number 3 becomes the next digit in our result. 
Result so far: 15597.346153
If we subtract 78 from 100, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 13:
The number 26 fits into 220 8 times, leaving a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 15597.3461538
If we subtract 208 from 220, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 14:
26 goes into 120 4 times with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 15597.34615384
If we subtract 104 from 120, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 15597.34615384, with a leftover of 1.6e-08.