We look at the division of 4172532 by 972 
The aim is to understand the frequency of 972 in 4172532.

On to step 1:
The number 972 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (1) from the dividend after 4, then repeat: 41 / 972

Advancing to step 2:
When dividing 41 by 972, we get 0 with a remainder of 41.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 41, we get 41.
Take the next digit (7) from the dividend and append it to 41, then repeat: 417 / 972

Going ahead to step 3:
If we divide 417 by 972, we get 0 and a remainder of 417.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 417, we end up with 417.
Fetch the next digit (2) from the dividend, attach it to 417 and continue: 4172 / 972

Going ahead to step 4:
If we divide 4172 by 972, we get 4 and a remainder of 284.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 3888 from 4172 to get 284.
Include the next digit (5) from the dividend after 284, then repeat: 2845 / 972

Let's proceed to step 5:
972 can be fit into 2845 2 times, resulting in a remainder of 901.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
If we take 1944 away from 2845, we end up with 901.
Bring next digit (3) of the dividend behind the 901 and repeat the process: 9013 / 972

On to step 6:
The number 972 fits into 9013 9 times, leaving a remainder of 265.
Write down 9 as next digit of the result. 
Result so far: 429.0
Deduct 8748 from 9013 and we're left with 265.
Fetch the next digit (2) from the dividend, attach it to 265 and continue: 2652 / 972

On to step 7:
972 goes into 2652 2 times with a remainder of 708.
The number 2 becomes the next digit in our result. 
Result so far: 4292.0
The remainder is 708 after subtracting 1944 from 2652.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7080, and continue the process.

Advancing to step 8:
When dividing 7080 by 972, we get 7 with a remainder of 276.
Record the quotient 7 as the next digit in the result. 
Result so far: 4292.7
Subtracting 6804 from 7080 leaves us with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Step 9:
2760 divided by 972 is 2 with a remainder of 816.
Use 2 as the next digit of our solution. 
Result so far: 4292.72
Subtract 1944 from 2760 to get 816.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8160, and continue the process.

Advancing to step 10:
If we divide 8160 by 972, we get 8 and a remainder of 384.
Put 8 as the next digit of the answer. 
Result so far: 4292.728
The remainder is 384 after subtracting 7776 from 8160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

On to step 11:
972 goes into 3840 3 times with a remainder of 924.
Put 3 as the next digit of the answer. 
Result so far: 4292.7283
If we take 2916 away from 3840, we end up with 924.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9240, and continue the process.

Going ahead to step 12:
972 goes into 9240 9 times with a remainder of 492.
Write down 9 as next digit of the result. 
Result so far: 4292.72839
If we take 8748 away from 9240, we end up with 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Advancing to step 13:
The number 972 fits into 4920 5 times, leaving a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 4292.728395
If we take 4860 away from 4920, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 14:
600 divided by 972 is 0 with a remainder of 600.
Use 0 as the next digit of our solution. 
Result so far: 4292.728395
The remainder is 600 after subtracting 0 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

On to step 15:
972 can be fit into 6000 6 times, resulting in a remainder of 168.
Write down 6 as next digit of the result. 
Result so far: 4292.72839506
If we take 5832 away from 6000, we end up with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

In conclusion, the division gives 4292.72839506 with a balance of 1.68e-07.