We look at the division of 19944164 by 215 
The aim is to understand the frequency of 215 in 19944164.

Going ahead to step 1:
215 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 215

Advancing to step 2:
215 can be fit into 19 0 times, resulting in a remainder of 19.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 19, we end up with 19.
Grab the next digit (9) from the dividend, add it to 19, then carry on: 199 / 215

On to step 3:
If we divide 199 by 215, we get 0 and a remainder of 199.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 199, we end up with 199.
Take the next digit (4) from the dividend and append it to 199, then repeat: 1994 / 215

Step 4:
1994 divided by 215 is 9 with a remainder of 59.
Put 9 as the next digit of the answer. 
Result so far: 9.0
The remainder is 59 after subtracting 1935 from 1994.
Bring next digit (4) of the dividend behind the 59 and repeat the process: 594 / 215

Step 5:
215 goes into 594 2 times with a remainder of 164.
Put 2 as the next digit of the answer. 
Result so far: 92.0
Subtracting 430 from 594 leaves us with 164.
Fetch the next digit (1) from the dividend, attach it to 164 and continue: 1641 / 215

Step 6:
The number 215 fits into 1641 7 times, leaving a remainder of 136.
Put 7 as the next digit of the answer. 
Result so far: 927.0
Subtracting 1505 from 1641 leaves us with 136.
Bring next digit (6) of the dividend behind the 136 and repeat the process: 1366 / 215

Step 7:
1366 divided by 215 is 6 with a remainder of 76.
Put 6 as the next digit of the answer. 
Result so far: 9276.0
If we subtract 1290 from 1366, we get 76.
Take the next digit (4) from the dividend and append it to 76, then repeat: 764 / 215

On to step 8:
215 goes into 764 3 times with a remainder of 119.
Put 3 as the next digit of the answer. 
Result so far: 92763.0
Subtracting 645 from 764 leaves us with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Going ahead to step 9:
When dividing 1190 by 215, we get 5 with a remainder of 115.
Write down 5 as next digit of the result. 
Result so far: 92763.5
If we take 1075 away from 1190, we end up with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Let's proceed to step 10:
The number 215 fits into 1150 5 times, leaving a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 92763.55
If we take 1075 away from 1150, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

The quotient of the division is 92763.55, and the remainder is 0.075.