39772421 divided by 72 
The aim is to understand the frequency of 72 in 39772421.

Advancing to step 1:
The number 72 fits into 3 0 times, leaving 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.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 72

Moving on to step 2:
If we divide 39 by 72, we get 0 and a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Fetch the next digit (7) from the dividend, attach it to 39 and continue: 397 / 72

On to step 3:
When dividing 397 by 72, we get 5 with a remainder of 37.
The next digit of our result is 5. 
Result so far: 5.0
If we take 360 away from 397, we end up with 37.
Bring next digit (7) of the dividend behind the 37 and repeat the process: 377 / 72

Advancing to step 4:
72 goes into 377 5 times with a remainder of 17.
Use 5 as the next digit of our solution. 
Result so far: 55.0
If we take 360 away from 377, we end up with 17.
Grab the next digit (2) from the dividend, add it to 17, then carry on: 172 / 72

Advancing to step 5:
The number 72 fits into 172 2 times, leaving a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 552.0
If we take 144 away from 172, we end up with 28.
Take the next digit (4) from the dividend and append it to 28, then repeat: 284 / 72

Step 6:
72 goes into 284 3 times with a remainder of 68.
Record the quotient 3 as the next digit in the result. 
Result so far: 5523.0
Deduct 216 from 284 and we're left with 68.
Take the next digit (2) from the dividend and append it to 68, then repeat: 682 / 72

Step 7:
If we divide 682 by 72, we get 9 and a remainder of 34.
Put 9 as the next digit of the answer. 
Result so far: 55239.0
Deduct 648 from 682 and we're left with 34.
Include the next digit (1) from the dividend after 34, then repeat: 341 / 72

Step 8:
72 can be fit into 341 4 times, resulting in a remainder of 53.
The next digit of our result is 4. 
Result so far: 552394.0
If we subtract 288 from 341, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Let's proceed to step 9:
72 can be fit into 530 7 times, resulting in a remainder of 26.
The next digit of our result is 7. 
Result so far: 552394.7
If we subtract 504 from 530, 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.

Moving on to step 10:
72 goes into 260 3 times with a remainder of 44.
Put 3 as the next digit of the answer. 
Result so far: 552394.73
Deduct 216 from 260 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 11:
72 goes into 440 6 times with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 552394.736
If we take 432 away from 440, 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.

Advancing to step 12:
72 can be fit into 80 1 times, resulting in a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 552394.7361
If we subtract 72 from 80, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 13:
72 can be fit into 80 1 times, resulting in a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 552394.73611
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 552394.73611 with a remainder of 8e-06.