644717 ÷ 27 
We're looking to find how many times 27 goes into 644717.

On to step 1:
27 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 27

Advancing to step 2:
The number 27 fits into 64 2 times, leaving a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 54 from 64 to get 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 27

On to step 3:
104 divided by 27 is 3 with a remainder of 23.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
If we take 81 away from 104, we end up with 23.
Include the next digit (7) from the dividend after 23, then repeat: 237 / 27

Advancing to step 4:
27 can be fit into 237 8 times, resulting in a remainder of 21.
Put 8 as the next digit of the answer. 
Result so far: 238.0
The remainder is 21 after subtracting 216 from 237.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 27

Moving on to step 5:
27 goes into 211 7 times with a remainder of 22.
Write down 7 as next digit of the result. 
Result so far: 2387.0
If we take 189 away from 211, we end up with 22.
Append the next digit (7) from the dividend to 22 and continue with: 227 / 27

Moving on to step 6:
227 divided by 27 is 8 with a remainder of 11.
Put 8 as the next digit of the answer. 
Result so far: 23878.0
Subtracting 216 from 227 leaves us 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.

Step 7:
If we divide 110 by 27, we get 4 and a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 23878.4
Subtracting 108 from 110 leaves us 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.

Moving on to step 8:
27 goes into 20 0 times with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 23878.4
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.

Advancing to step 9:
27 can be fit into 200 7 times, resulting in a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 23878.407
Subtracting 189 from 200 leaves us 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.

Step 10:
27 can be fit into 110 4 times, resulting in a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 23878.4074
Subtract 108 from 110 to 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.

Moving on to step 11:
If we divide 20 by 27, we get 0 and a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 23878.4074
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 12:
27 goes into 200 7 times with a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 23878.407407
Deduct 189 from 200 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.

Advancing to step 13:
27 can be fit into 110 4 times, resulting in a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 23878.4074074
The remainder is 2 after subtracting 108 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 14:
The number 27 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 23878.4074074
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 23878.4074074 with a remainder of 2e-08.