21778214 ÷ 291 
The aim is to understand the frequency of 291 in 21778214.

On to step 1:
291 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 291

On to step 2:
When dividing 21 by 291, we get 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Bring next digit (7) of the dividend behind the 21 and repeat the process: 217 / 291

Moving on to step 3:
291 can be fit into 217 0 times, resulting in a remainder of 217.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 217, we get 217.
Include the next digit (7) from the dividend after 217, then repeat: 2177 / 291

Moving on to step 4:
291 can be fit into 2177 7 times, resulting in a remainder of 140.
The next digit of our result is 7. 
Result so far: 7.0
If we take 2037 away from 2177, we end up with 140.
Take the next digit (8) from the dividend and append it to 140, then repeat: 1408 / 291

Advancing to step 5:
When dividing 1408 by 291, we get 4 with a remainder of 244.
Use 4 as the next digit of our solution. 
Result so far: 74.0
Deduct 1164 from 1408 and we're left with 244.
Append the next digit (2) from the dividend to 244 and continue with: 2442 / 291

Going ahead to step 6:
When dividing 2442 by 291, we get 8 with a remainder of 114.
Record the quotient 8 as the next digit in the result. 
Result so far: 748.0
If we take 2328 away from 2442, we end up with 114.
Fetch the next digit (1) from the dividend, attach it to 114 and continue: 1141 / 291

Step 7:
When dividing 1141 by 291, we get 3 with a remainder of 268.
The number 3 becomes the next digit in our result. 
Result so far: 7483.0
Deduct 873 from 1141 and we're left with 268.
Append the next digit (4) from the dividend to 268 and continue with: 2684 / 291

Going ahead to step 8:
291 goes into 2684 9 times with a remainder of 65.
The next digit of our result is 9. 
Result so far: 74839.0
If we subtract 2619 from 2684, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 9:
291 goes into 650 2 times with a remainder of 68.
Put 2 as the next digit of the answer. 
Result so far: 74839.2
Subtract 582 from 650 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 10:
When dividing 680 by 291, we get 2 with a remainder of 98.
Use 2 as the next digit of our solution. 
Result so far: 74839.22
Subtracting 582 from 680 leaves us with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

The final outcome is 74839.22, with a leftover of 0.098.