Let's divide 30811941 by 215
The aim is to understand the frequency of 215 in 30811941.

Going ahead to step 1:
215 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 215

Let's proceed to step 2:
215 can be fit into 30 0 times, resulting in a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Fetch the next digit (8) from the dividend, attach it to 30 and continue: 308 / 215

Advancing to step 3:
215 goes into 308 1 times with a remainder of 93.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 215 away from 308, we end up with 93.
Fetch the next digit (1) from the dividend, attach it to 93 and continue: 931 / 215

Advancing to step 4:
The number 215 fits into 931 4 times, leaving a remainder of 71.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtracting 860 from 931 leaves us with 71.
Grab the next digit (1) from the dividend, add it to 71, then carry on: 711 / 215

On to step 5:
The number 215 fits into 711 3 times, leaving a remainder of 66.
Use 3 as the next digit of our solution. 
Result so far: 143.0
Subtract 645 from 711 to get 66.
Bring next digit (9) of the dividend behind the 66 and repeat the process: 669 / 215

Going ahead to step 6:
215 goes into 669 3 times with a remainder of 24.
The number 3 becomes the next digit in our result. 
Result so far: 1433.0
If we subtract 645 from 669, we get 24.
Grab the next digit (4) from the dividend, add it to 24, then carry on: 244 / 215

Let's proceed to step 7:
215 goes into 244 1 times with a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 14331.0
Subtract 215 from 244 to get 29.
Grab the next digit (1) from the dividend, add it to 29, then carry on: 291 / 215

Moving on to step 8:
215 goes into 291 1 times with a remainder of 76.
The number 1 becomes the next digit in our result. 
Result so far: 143311.0
Subtract 215 from 291 to 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 9:
If we divide 760 by 215, we get 3 and a remainder of 115.
Write down 3 as next digit of the result. 
Result so far: 143311.3
If we take 645 away from 760, 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.

Step 10:
1150 divided by 215 is 5 with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 143311.35
The remainder is 75 after subtracting 1075 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 11:
If we divide 750 by 215, we get 3 and a remainder of 105.
Write down 3 as next digit of the result. 
Result so far: 143311.353
The remainder is 105 after subtracting 645 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

On to step 12:
1050 divided by 215 is 4 with a remainder of 190.
The number 4 becomes the next digit in our result. 
Result so far: 143311.3534
Deduct 860 from 1050 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 13:
215 can be fit into 1900 8 times, resulting in a remainder of 180.
The next digit of our result is 8. 
Result so far: 143311.35348
If we subtract 1720 from 1900, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Advancing to step 14:
215 goes into 1800 8 times with a remainder of 80.
Put 8 as the next digit of the answer. 
Result so far: 143311.353488
Subtracting 1720 from 1800 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

After the division, we end up with 143311.353488 and a remainder of 8e-06.