We're dividing 12012983 by 172 
The aim is to understand the frequency of 172 in 12012983.

Let's proceed to step 1:
The number 172 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 172

On to step 2:
The number 172 fits into 12 0 times, leaving a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Include the next digit (0) from the dividend after 12, then repeat: 120 / 172

Moving on to step 3:
172 can be fit into 120 0 times, resulting in a remainder of 120.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 120 after subtracting 0 from 120.
Append the next digit (1) from the dividend to 120 and continue with: 1201 / 172

Advancing to step 4:
172 goes into 1201 6 times with a remainder of 169.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we subtract 1032 from 1201, we get 169.
Fetch the next digit (2) from the dividend, attach it to 169 and continue: 1692 / 172

Step 5:
The number 172 fits into 1692 9 times, leaving a remainder of 144.
Use 9 as the next digit of our solution. 
Result so far: 69.0
If we subtract 1548 from 1692, we get 144.
Fetch the next digit (9) from the dividend, attach it to 144 and continue: 1449 / 172

Advancing to step 6:
172 goes into 1449 8 times with a remainder of 73.
The next digit of our result is 8. 
Result so far: 698.0
Subtract 1376 from 1449 to get 73.
Fetch the next digit (8) from the dividend, attach it to 73 and continue: 738 / 172

Let's proceed to step 7:
When dividing 738 by 172, we get 4 with a remainder of 50.
The next digit of our result is 4. 
Result so far: 6984.0
The remainder is 50 after subtracting 688 from 738.
Grab the next digit (3) from the dividend, add it to 50, then carry on: 503 / 172

Advancing to step 8:
503 divided by 172 is 2 with a remainder of 159.
Write down 2 as next digit of the result. 
Result so far: 69842.0
Subtracting 344 from 503 leaves us with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Going ahead to step 9:
172 goes into 1590 9 times with a remainder of 42.
The number 9 becomes the next digit in our result. 
Result so far: 69842.9
Subtracting 1548 from 1590 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 10:
420 divided by 172 is 2 with a remainder of 76.
Use 2 as the next digit of our solution. 
Result so far: 69842.92
If we subtract 344 from 420, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 11:
760 divided by 172 is 4 with a remainder of 72.
Write down 4 as next digit of the result. 
Result so far: 69842.924
Subtract 688 from 760 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 12:
172 goes into 720 4 times with a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 69842.9244
Subtracting 688 from 720 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 69842.9244, with a leftover of 0.00032.