81780563 ÷ 26 
Our goal is to divide 81780563 by 26.

Let's proceed to step 1:
8 divided by 26 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 26

Let's proceed to step 2:
81 divided by 26 is 3 with a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 78 from 81 leaves us with 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 26

Advancing to step 3:
37 divided by 26 is 1 with a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 31.0
If we subtract 26 from 37, we get 11.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 26

Advancing to step 4:
If we divide 118 by 26, we get 4 and a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 314.0
The remainder is 14 after subtracting 104 from 118.
Fetch the next digit (0) from the dividend, attach it to 14 and continue: 140 / 26

Moving on to step 5:
26 goes into 140 5 times with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 3145.0
The remainder is 10 after subtracting 130 from 140.
Include the next digit (5) from the dividend after 10, then repeat: 105 / 26

Let's proceed to step 6:
105 divided by 26 is 4 with a remainder of 1.
The next digit of our result is 4. 
Result so far: 31454.0
Deduct 104 from 105 and we're left with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 26

Step 7:
16 divided by 26 is 0 with a remainder of 16.
The next digit of our result is 0. 
Result so far: 314540.0
If we take 0 away from 16, we end up with 16.
Append the next digit (3) from the dividend to 16 and continue with: 163 / 26

Advancing to step 8:
26 can be fit into 163 6 times, resulting in a remainder of 7.
Write down 6 as next digit of the result. 
Result so far: 3145406.0
If we take 156 away from 163, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 9:
70 divided by 26 is 2 with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 3145406.2
Deduct 52 from 70 and we're left 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.

Going ahead to step 10:
26 can be fit into 180 6 times, resulting in a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 3145406.26
The remainder is 24 after subtracting 156 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 11:
26 can be fit into 240 9 times, resulting in a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 3145406.269
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.

Going ahead to step 12:
26 can be fit into 60 2 times, resulting in a remainder of 8.
The next digit of our result is 2. 
Result so far: 3145406.2692
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.

Advancing to step 13:
26 goes into 80 3 times with a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 3145406.26923
If we take 78 away from 80, we end up 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 14:
If we divide 20 by 26, we get 0 and a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 3145406.26923
Subtract 0 from 20 to 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 15:
The number 26 fits into 200 7 times, leaving a remainder of 18.
The next digit of our result is 7. 
Result so far: 3145406.2692307
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.

Moving on to step 16:
When dividing 180 by 26, we get 6 with a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 3145406.26923076
Deduct 156 from 180 and we're left 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.

After the division, we end up with 3145406.26923076 and a remainder of 2.4e-08.