749621 divided by 72 
The aim is to understand the frequency of 72 in 749621.

On to step 1:
72 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 72

Let's proceed to step 2:
When dividing 74 by 72, we get 1 with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 2 after subtracting 72 from 74.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 72

On to step 3:
72 goes into 29 0 times with a remainder of 29.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtract 0 from 29 to get 29.
Grab the next digit (6) from the dividend, add it to 29, then carry on: 296 / 72

Moving on to step 4:
When dividing 296 by 72, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
Deduct 288 from 296 and we're left with 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 72

Step 5:
72 can be fit into 82 1 times, resulting in a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 1041.0
The remainder is 10 after subtracting 72 from 82.
Append the next digit (1) from the dividend to 10 and continue with: 101 / 72

Step 6:
72 goes into 101 1 times with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 10411.0
If we subtract 72 from 101, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 7:
When dividing 290 by 72, we get 4 with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 10411.4
Deduct 288 from 290 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 8:
When dividing 20 by 72, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 10411.4
Subtract 0 from 20 to 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.

Step 9:
72 can be fit into 200 2 times, resulting in a remainder of 56.
The number 2 becomes the next digit in our result. 
Result so far: 10411.402
Subtracting 144 from 200 leaves us 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.

Step 10:
72 can be fit into 560 7 times, resulting in a remainder of 56.
Put 7 as the next digit of the answer. 
Result so far: 10411.4027
Subtracting 504 from 560 leaves us 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.

Let's proceed to step 11:
560 divided by 72 is 7 with a remainder of 56.
Put 7 as the next digit of the answer. 
Result so far: 10411.40277
Deduct 504 from 560 and we're left 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.

The final result is 10411.40277 with a remainder of 5.6e-05.