We're dividing 521729 by 72 
We want to figure out the number of times 521729 can be divided by 72.

Moving on to step 1:
72 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 72

On to step 2:
72 goes into 52 0 times with a remainder of 52.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 52 leaves us with 52.
Take the next digit (1) from the dividend and append it to 52, then repeat: 521 / 72

Let's proceed to step 3:
When dividing 521 by 72, we get 7 with a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 7.0
The remainder is 17 after subtracting 504 from 521.
Fetch the next digit (7) from the dividend, attach it to 17 and continue: 177 / 72

Going ahead to step 4:
If we divide 177 by 72, we get 2 and a remainder of 33.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
The remainder is 33 after subtracting 144 from 177.
Take the next digit (2) from the dividend and append it to 33, then repeat: 332 / 72

Moving on to step 5:
72 goes into 332 4 times with a remainder of 44.
The number 4 becomes the next digit in our result. 
Result so far: 724.0
Subtract 288 from 332 to get 44.
Append the next digit (9) from the dividend to 44 and continue with: 449 / 72

Let's proceed to step 6:
449 divided by 72 is 6 with a remainder of 17.
Write down 6 as next digit of the result. 
Result so far: 7246.0
Subtracting 432 from 449 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 7:
170 divided by 72 is 2 with a remainder of 26.
Use 2 as the next digit of our solution. 
Result so far: 7246.2
If we subtract 144 from 170, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 8:
72 goes into 260 3 times with a remainder of 44.
The next digit of our result is 3. 
Result so far: 7246.23
If we subtract 216 from 260, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 9:
When dividing 440 by 72, we get 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 7246.236
Deduct 432 from 440 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
72 goes into 80 1 times with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 7246.2361
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 11:
80 divided by 72 is 1 with a remainder of 8.
The next digit of our result is 1. 
Result so far: 7246.23611
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 7246.23611 with a balance of 8e-06.