We're dividing 439531 by 66 
We want to figure out the number of times 439531 can be divided by 66.

Moving on to step 1:
4 divided by 66 is 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 66

Step 2:
43 divided by 66 is 0 with a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Grab the next digit (9) from the dividend, add it to 43, then carry on: 439 / 66

On to step 3:
If we divide 439 by 66, we get 6 and a remainder of 43.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 396 from 439 to get 43.
Include the next digit (5) from the dividend after 43, then repeat: 435 / 66

On to step 4:
66 goes into 435 6 times with a remainder of 39.
Put 6 as the next digit of the answer. 
Result so far: 66.0
Subtracting 396 from 435 leaves us with 39.
Append the next digit (3) from the dividend to 39 and continue with: 393 / 66

On to step 5:
66 can be fit into 393 5 times, resulting in a remainder of 63.
The number 5 becomes the next digit in our result. 
Result so far: 665.0
If we take 330 away from 393, we end up with 63.
Take the next digit (1) from the dividend and append it to 63, then repeat: 631 / 66

Going ahead to step 6:
631 divided by 66 is 9 with a remainder of 37.
The number 9 becomes the next digit in our result. 
Result so far: 6659.0
Subtracting 594 from 631 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 7:
66 can be fit into 370 5 times, resulting in a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 6659.5
If we take 330 away from 370, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 8:
If we divide 400 by 66, we get 6 and a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 6659.56
Deduct 396 from 400 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.

Moving on to step 9:
66 goes into 40 0 times with a remainder of 40.
The next digit of our result is 0. 
Result so far: 6659.56
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
66 can be fit into 400 6 times, resulting in a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 6659.5606
Subtracting 396 from 400 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.

Moving on to step 11:
66 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 6659.5606
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 12:
If we divide 400 by 66, we get 6 and a remainder of 4.
The next digit of our result is 6. 
Result so far: 6659.560606
Subtract 396 from 400 to 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.

Step 13:
If we divide 40 by 66, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 6659.560606
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 14:
66 goes into 400 6 times with a remainder of 4.
The next digit of our result is 6. 
Result so far: 6659.56060606
Deduct 396 from 400 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.

The final outcome is 6659.56060606, with a leftover of 4e-09.