639661 ÷ 27 
We want to figure out the number of times 639661 can be divided by 27.

Let's proceed to step 1:
If we divide 6 by 27, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 27

On to step 2:
The number 27 fits into 63 2 times, leaving a remainder of 9.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 54 from 63 and we're left with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 27

Advancing to step 3:
If we divide 99 by 27, we get 3 and a remainder of 18.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
Subtract 81 from 99 to get 18.
Fetch the next digit (6) from the dividend, attach it to 18 and continue: 186 / 27

Let's proceed to step 4:
When dividing 186 by 27, we get 6 with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 236.0
Subtract 162 from 186 to get 24.
Take the next digit (6) from the dividend and append it to 24, then repeat: 246 / 27

Advancing to step 5:
246 divided by 27 is 9 with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 2369.0
The remainder is 3 after subtracting 243 from 246.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 27

Advancing to step 6:
The number 27 fits into 31 1 times, leaving a remainder of 4.
Record the quotient 1 as the next digit in the result. 
Result so far: 23691.0
Subtracting 27 from 31 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.

Going ahead to step 7:
40 divided by 27 is 1 with a remainder of 13.
The next digit of our result is 1. 
Result so far: 23691.1
Subtracting 27 from 40 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 8:
27 can be fit into 130 4 times, resulting in a remainder of 22.
Use 4 as the next digit of our solution. 
Result so far: 23691.14
Subtract 108 from 130 to 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.

Let's proceed to step 9:
If we divide 220 by 27, we get 8 and a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 23691.148
Deduct 216 from 220 and we're left 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 10:
When dividing 40 by 27, we get 1 with a remainder of 13.
The next digit of our result is 1. 
Result so far: 23691.1481
The remainder is 13 after subtracting 27 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 11:
The number 27 fits into 130 4 times, leaving a remainder of 22.
Record the quotient 4 as the next digit in the result. 
Result so far: 23691.14814
If we subtract 108 from 130, 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.

Advancing to step 12:
220 divided by 27 is 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 23691.148148
If we take 216 away from 220, we end up 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.

Step 13:
40 divided by 27 is 1 with a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 23691.1481481
The remainder is 13 after subtracting 27 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 14:
When dividing 130 by 27, we get 4 with a remainder of 22.
Record the quotient 4 as the next digit in the result. 
Result so far: 23691.14814814
If we subtract 108 from 130, 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.

The quotient of the division is 23691.14814814, and the remainder is 2.2e-08.