We divide 581357 by 72
The aim is to understand the frequency of 72 in 581357.

On to step 1:
When dividing 5 by 72, we get 0 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.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 72

Moving on to step 2:
If we divide 58 by 72, we get 0 and a remainder of 58.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 58 and we're left with 58.
Append the next digit (1) from the dividend to 58 and continue with: 581 / 72

Moving on to step 3:
If we divide 581 by 72, we get 8 and a remainder of 5.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 576 from 581 leaves us with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 72

Step 4:
If we divide 53 by 72, we get 0 and a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 80.0
Deduct 0 from 53 and we're left with 53.
Take the next digit (5) from the dividend and append it to 53, then repeat: 535 / 72

Moving on to step 5:
72 goes into 535 7 times with a remainder of 31.
Use 7 as the next digit of our solution. 
Result so far: 807.0
Deduct 504 from 535 and we're left with 31.
Take the next digit (7) from the dividend and append it to 31, then repeat: 317 / 72

On to step 6:
72 goes into 317 4 times with a remainder of 29.
Put 4 as the next digit of the answer. 
Result so far: 8074.0
If we take 288 away from 317, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 7:
72 can be fit into 290 4 times, resulting in a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 8074.4
The remainder is 2 after subtracting 288 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
When dividing 20 by 72, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 8074.4
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
If we divide 200 by 72, we get 2 and a remainder of 56.
Record the quotient 2 as the next digit in the result. 
Result so far: 8074.402
If we subtract 144 from 200, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 10:
The number 72 fits into 560 7 times, leaving a remainder of 56.
Write down 7 as next digit of the result. 
Result so far: 8074.4027
If we take 504 away from 560, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 11:
The number 72 fits into 560 7 times, leaving a remainder of 56.
Record the quotient 7 as the next digit in the result. 
Result so far: 8074.40277
Subtract 504 from 560 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

In conclusion, the division gives 8074.40277 with a balance of 5.6e-05.