43639 divided by 6 
Let's see how many times 6 fits into 43639.

Advancing to step 1:
When dividing 4 by 6, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 6

Advancing to step 2:
43 divided by 6 is 7 with a remainder of 1.
The next digit of our result is 7. 
Result so far: 7.0
If we take 42 away from 43, we end up with 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 6

Step 3:
The number 6 fits into 16 2 times, leaving a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 72.0
Subtracting 12 from 16 leaves us with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 6

Moving on to step 4:
6 goes into 43 7 times with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 727.0
Deduct 42 from 43 and we're left with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 6

Going ahead to step 5:
If we divide 19 by 6, we get 3 and a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 7273.0
If we take 18 away from 19, we end up with 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 6:
6 can be fit into 10 1 times, resulting in a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 7273.1
Deduct 6 from 10 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.

Let's proceed to step 7:
6 goes into 40 6 times with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 7273.16
If we subtract 36 from 40, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
40 divided by 6 is 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 7273.166
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 7273.166, and the remainder is 0.0004.