11372943 ÷ 396 
The aim is to understand the frequency of 396 in 11372943.

Let's proceed to step 1:
1 divided by 396 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 396

On to step 2:
The number 396 fits into 11 0 times, leaving a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 11, we end up with 11.
Append the next digit (3) from the dividend to 11 and continue with: 113 / 396

On to step 3:
When dividing 113 by 396, we get 0 with a remainder of 113.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 113 and we're left with 113.
Append the next digit (7) from the dividend to 113 and continue with: 1137 / 396

Going ahead to step 4:
When dividing 1137 by 396, we get 2 with a remainder of 345.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 792 from 1137, we get 345.
Append the next digit (2) from the dividend to 345 and continue with: 3452 / 396

Going ahead to step 5:
When dividing 3452 by 396, we get 8 with a remainder of 284.
Put 8 as the next digit of the answer. 
Result so far: 28.0
If we subtract 3168 from 3452, we get 284.
Fetch the next digit (9) from the dividend, attach it to 284 and continue: 2849 / 396

Let's proceed to step 6:
2849 divided by 396 is 7 with a remainder of 77.
Use 7 as the next digit of our solution. 
Result so far: 287.0
Subtract 2772 from 2849 to get 77.
Take the next digit (4) from the dividend and append it to 77, then repeat: 774 / 396

Step 7:
396 can be fit into 774 1 times, resulting in a remainder of 378.
Record the quotient 1 as the next digit in the result. 
Result so far: 2871.0
If we subtract 396 from 774, we get 378.
Include the next digit (3) from the dividend after 378, then repeat: 3783 / 396

On to step 8:
3783 divided by 396 is 9 with a remainder of 219.
Put 9 as the next digit of the answer. 
Result so far: 28719.0
If we take 3564 away from 3783, we end up with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Step 9:
If we divide 2190 by 396, we get 5 and a remainder of 210.
The number 5 becomes the next digit in our result. 
Result so far: 28719.5
Subtract 1980 from 2190 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Let's proceed to step 10:
The number 396 fits into 2100 5 times, leaving a remainder of 120.
Write down 5 as next digit of the result. 
Result so far: 28719.55
If we subtract 1980 from 2100, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

The final result is 28719.55 with a remainder of 0.12.