287986 divided by 72 
The aim is to understand the frequency of 72 in 287986.

Going ahead to step 1:
The number 72 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 72

Going ahead to step 2:
72 goes into 28 0 times with a remainder of 28.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 28, we get 28.
Fetch the next digit (7) from the dividend, attach it to 28 and continue: 287 / 72

On to step 3:
If we divide 287 by 72, we get 3 and a remainder of 71.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 216 from 287 and we're left with 71.
Append the next digit (9) from the dividend to 71 and continue with: 719 / 72

Step 4:
719 divided by 72 is 9 with a remainder of 71.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
The remainder is 71 after subtracting 648 from 719.
Take the next digit (8) from the dividend and append it to 71, then repeat: 718 / 72

Going ahead to step 5:
The number 72 fits into 718 9 times, leaving a remainder of 70.
Record the quotient 9 as the next digit in the result. 
Result so far: 399.0
The remainder is 70 after subtracting 648 from 718.
Fetch the next digit (6) from the dividend, attach it to 70 and continue: 706 / 72

Moving on to step 6:
72 can be fit into 706 9 times, resulting in a remainder of 58.
The next digit of our result is 9. 
Result so far: 3999.0
If we take 648 away from 706, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 7:
The number 72 fits into 580 8 times, leaving a remainder of 4.
The next digit of our result is 8. 
Result so far: 3999.8
The remainder is 4 after subtracting 576 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 8:
When dividing 40 by 72, we get 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 3999.8
If we take 0 away from 40, 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.

Moving on to step 9:
If we divide 400 by 72, we get 5 and a remainder of 40.
Put 5 as the next digit of the answer. 
Result so far: 3999.805
If we subtract 360 from 400, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 10:
72 goes into 400 5 times with a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 3999.8055
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

In conclusion, the division gives 3999.8055 with a balance of 0.0004.