521803 divided by 27 
We want to figure out the number of times 521803 can be divided by 27.

On to step 1:
If we divide 5 by 27, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 27

Step 2:
The number 27 fits into 52 1 times, leaving a remainder of 25.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 27 from 52, we get 25.
Take the next digit (1) from the dividend and append it to 25, then repeat: 251 / 27

Advancing to step 3:
251 divided by 27 is 9 with a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we subtract 243 from 251, we get 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 27

On to step 4:
88 divided by 27 is 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 193.0
Deduct 81 from 88 and we're left with 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 27

Advancing to step 5:
When dividing 70 by 27, we get 2 with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 1932.0
Deduct 54 from 70 and we're left with 16.
Fetch the next digit (3) from the dividend, attach it to 16 and continue: 163 / 27

Step 6:
27 can be fit into 163 6 times, resulting in a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 19326.0
Subtract 162 from 163 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
If we divide 10 by 27, we get 0 and a remainder of 10.
The next digit of our result is 0. 
Result so far: 19326.0
Subtracting 0 from 10 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.

Step 8:
When dividing 100 by 27, we get 3 with a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 19326.03
If we subtract 81 from 100, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 9:
190 divided by 27 is 7 with a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 19326.037
The remainder is 1 after subtracting 189 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 10:
27 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 19326.037
If we subtract 0 from 10, we 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 11:
If we divide 100 by 27, we get 3 and a remainder of 19.
Put 3 as the next digit of the answer. 
Result so far: 19326.03703
The remainder is 19 after subtracting 81 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 12:
190 divided by 27 is 7 with a remainder of 1.
The next digit of our result is 7. 
Result so far: 19326.037037
Subtract 189 from 190 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 13:
27 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 19326.037037
If we subtract 0 from 10, we 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.

On to step 14:
When dividing 100 by 27, we get 3 with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 19326.03703703
If we take 81 away from 100, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

After the division, we end up with 19326.03703703 and a remainder of 1.9e-08.