49094768 divided by 21 
The aim is to understand the frequency of 21 in 49094768.

Let's proceed to step 1:
When dividing 4 by 21, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 21

On to step 2:
If we divide 49 by 21, we get 2 and a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 42 from 49, we get 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 21

Let's proceed to step 3:
The number 21 fits into 70 3 times, leaving a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
If we take 63 away from 70, we end up with 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 21

Going ahead to step 4:
79 divided by 21 is 3 with a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 233.0
Deduct 63 from 79 and we're left with 16.
Include the next digit (4) from the dividend after 16, then repeat: 164 / 21

On to step 5:
When dividing 164 by 21, we get 7 with a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 2337.0
Deduct 147 from 164 and we're left with 17.
Bring next digit (7) of the dividend behind the 17 and repeat the process: 177 / 21

Going ahead to step 6:
When dividing 177 by 21, we get 8 with a remainder of 9.
Record the quotient 8 as the next digit in the result. 
Result so far: 23378.0
Deduct 168 from 177 and we're left with 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 21

Step 7:
If we divide 96 by 21, we get 4 and a remainder of 12.
The next digit of our result is 4. 
Result so far: 233784.0
Subtracting 84 from 96 leaves us with 12.
Append the next digit (8) from the dividend to 12 and continue with: 128 / 21

Moving on to step 8:
If we divide 128 by 21, we get 6 and a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 2337846.0
Subtract 126 from 128 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 9:
21 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 2337846.0
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
If we divide 200 by 21, we get 9 and a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 2337846.09
If we subtract 189 from 200, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 11:
The number 21 fits into 110 5 times, leaving a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 2337846.095
If we subtract 105 from 110, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 12:
21 can be fit into 50 2 times, resulting in a remainder of 8.
The next digit of our result is 2. 
Result so far: 2337846.0952
Subtracting 42 from 50 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 13:
The number 21 fits into 80 3 times, leaving a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 2337846.09523
Deduct 63 from 80 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 14:
21 can be fit into 170 8 times, resulting in a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 2337846.095238
Subtract 168 from 170 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 15:
20 divided by 21 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 2337846.095238
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 16:
The number 21 fits into 200 9 times, leaving a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 2337846.09523809
The remainder is 11 after subtracting 189 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Our division results in 2337846.09523809 with a remaining 1.1e-08.