399444 divided by 72 
We're looking to find how many times 72 goes into 399444.

Let's proceed to step 1:
3 divided by 72 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 72

Going ahead to step 2:
72 goes into 39 0 times with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Grab the next digit (9) from the dividend, add it to 39, then carry on: 399 / 72

Advancing to step 3:
72 can be fit into 399 5 times, resulting in a remainder of 39.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 360 away from 399, we end up with 39.
Append the next digit (4) from the dividend to 39 and continue with: 394 / 72

Advancing to step 4:
394 divided by 72 is 5 with a remainder of 34.
Record the quotient 5 as the next digit in the result. 
Result so far: 55.0
If we take 360 away from 394, we end up with 34.
Include the next digit (4) from the dividend after 34, then repeat: 344 / 72

Moving on to step 5:
72 can be fit into 344 4 times, resulting in a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 554.0
The remainder is 56 after subtracting 288 from 344.
Fetch the next digit (4) from the dividend, attach it to 56 and continue: 564 / 72

Let's proceed to step 6:
564 divided by 72 is 7 with a remainder of 60.
The number 7 becomes the next digit in our result. 
Result so far: 5547.0
Subtracting 504 from 564 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 7:
If we divide 600 by 72, we get 8 and a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 5547.8
Subtracting 576 from 600 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 8:
72 can be fit into 240 3 times, resulting in a remainder of 24.
Put 3 as the next digit of the answer. 
Result so far: 5547.83
If we take 216 away from 240, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 9:
If we divide 240 by 72, we get 3 and a remainder of 24.
Record the quotient 3 as the next digit in the result. 
Result so far: 5547.833
Subtracting 216 from 240 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 5547.833, with a leftover of 0.0024.