We're dividing 391210 by 26 
We want to divide 391210 by 26.

Step 1:
If we divide 3 by 26, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 26

Going ahead to step 2:
26 goes into 39 1 times with a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 26 away from 39, we end up with 13.
Fetch the next digit (1) from the dividend, attach it to 13 and continue: 131 / 26

Let's proceed to step 3:
If we divide 131 by 26, we get 5 and a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtracting 130 from 131 leaves us with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 26

On to step 4:
26 goes into 12 0 times with a remainder of 12.
The next digit of our result is 0. 
Result so far: 150.0
Deduct 0 from 12 and we're left with 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 26

Step 5:
26 goes into 121 4 times with a remainder of 17.
Use 4 as the next digit of our solution. 
Result so far: 1504.0
Subtract 104 from 121 to get 17.
Include the next digit (0) from the dividend after 17, then repeat: 170 / 26

Advancing to step 6:
26 can be fit into 170 6 times, resulting in a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 15046.0
Deduct 156 from 170 and we're left 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.

On to step 7:
26 goes into 140 5 times with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 15046.5
Subtracting 130 from 140 leaves us 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.

Going ahead to step 8:
The number 26 fits into 100 3 times, leaving a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 15046.53
If we take 78 away from 100, we end up 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 9:
The number 26 fits into 220 8 times, leaving a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 15046.538
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.

On to step 10:
120 divided by 26 is 4 with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 15046.5384
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.

Going ahead to step 11:
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: 15046.53846
Subtracting 156 from 160 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 12:
26 can be fit into 40 1 times, resulting in a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 15046.538461
Deduct 26 from 40 and we're left 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.

Let's proceed to step 13:
140 divided by 26 is 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 15046.5384615
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.

Advancing to step 14:
When dividing 100 by 26, we get 3 with a remainder of 22.
The next digit of our result is 3. 
Result so far: 15046.53846153
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.

The final outcome is 15046.53846153, with a leftover of 2.2e-08.