Let's divide 910639 by 72
The aim is to understand the frequency of 72 in 910639.

On to step 1:
9 divided by 72 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 72

Let's proceed to step 2:
When dividing 91 by 72, we get 1 with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 72 from 91, we get 19.
Bring next digit (0) of the dividend behind the 19 and repeat the process: 190 / 72

On to step 3:
72 goes into 190 2 times with a remainder of 46.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 144 from 190 to get 46.
Grab the next digit (6) from the dividend, add it to 46, then carry on: 466 / 72

On to step 4:
72 goes into 466 6 times with a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 126.0
The remainder is 34 after subtracting 432 from 466.
Grab the next digit (3) from the dividend, add it to 34, then carry on: 343 / 72

On to step 5:
343 divided by 72 is 4 with a remainder of 55.
The number 4 becomes the next digit in our result. 
Result so far: 1264.0
If we subtract 288 from 343, we get 55.
Bring next digit (9) of the dividend behind the 55 and repeat the process: 559 / 72

Advancing to step 6:
559 divided by 72 is 7 with a remainder of 55.
The next digit of our result is 7. 
Result so far: 12647.0
If we take 504 away from 559, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 7:
The number 72 fits into 550 7 times, leaving a remainder of 46.
Write down 7 as next digit of the result. 
Result so far: 12647.7
Deduct 504 from 550 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 8:
The number 72 fits into 460 6 times, leaving a remainder of 28.
Use 6 as the next digit of our solution. 
Result so far: 12647.76
If we take 432 away from 460, we end up 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 9:
When dividing 280 by 72, we get 3 with a remainder of 64.
The number 3 becomes the next digit in our result. 
Result so far: 12647.763
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.

Advancing to step 10:
72 can be fit into 640 8 times, resulting in a remainder of 64.
Use 8 as the next digit of our solution. 
Result so far: 12647.7638
If we subtract 576 from 640, 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.

Advancing to step 11:
If we divide 640 by 72, we get 8 and a remainder of 64.
The next digit of our result is 8. 
Result so far: 12647.76388
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.

The final outcome is 12647.76388, with a leftover of 6.4e-05.