We're dividing 70797709 by 72 
The aim is to understand the frequency of 72 in 70797709.

Step 1:
When dividing 7 by 72, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 72

Advancing to step 2:
70 divided by 72 is 0 with a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 70, we get 70.
Append the next digit (7) from the dividend to 70 and continue with: 707 / 72

Advancing to step 3:
If we divide 707 by 72, we get 9 and a remainder of 59.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 648 from 707, we get 59.
Append the next digit (9) from the dividend to 59 and continue with: 599 / 72

Advancing to step 4:
If we divide 599 by 72, we get 8 and a remainder of 23.
Put 8 as the next digit of the answer. 
Result so far: 98.0
Subtract 576 from 599 to get 23.
Fetch the next digit (7) from the dividend, attach it to 23 and continue: 237 / 72

Going ahead to step 5:
The number 72 fits into 237 3 times, leaving a remainder of 21.
Use 3 as the next digit of our solution. 
Result so far: 983.0
The remainder is 21 after subtracting 216 from 237.
Grab the next digit (7) from the dividend, add it to 21, then carry on: 217 / 72

Moving on to step 6:
If we divide 217 by 72, we get 3 and a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 9833.0
If we subtract 216 from 217, we get 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 72

Advancing to step 7:
72 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 98330.0
Deduct 0 from 10 and we're left with 10.
Take the next digit (9) from the dividend and append it to 10, then repeat: 109 / 72

On to step 8:
72 can be fit into 109 1 times, resulting in a remainder of 37.
Put 1 as the next digit of the answer. 
Result so far: 983301.0
If we take 72 away from 109, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 9:
72 can be fit into 370 5 times, resulting in a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 983301.5
If we take 360 away from 370, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
If we divide 100 by 72, we get 1 and a remainder of 28.
The next digit of our result is 1. 
Result so far: 983301.51
Subtracting 72 from 100 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 11:
72 goes into 280 3 times with a remainder of 64.
The next digit of our result is 3. 
Result so far: 983301.513
If we subtract 216 from 280, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 12:
When dividing 640 by 72, we get 8 with a remainder of 64.
The number 8 becomes the next digit in our result. 
Result so far: 983301.5138
Deduct 576 from 640 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 13:
When dividing 640 by 72, we get 8 with a remainder of 64.
The number 8 becomes the next digit in our result. 
Result so far: 983301.51388
If we take 576 away from 640, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

After the division, we end up with 983301.51388 and a remainder of 6.4e-05.