Let's divide 21992120 by 395
The aim is to understand the frequency of 395 in 21992120.

Advancing to step 1:
395 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 395

Going ahead to step 2:
395 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Append the next digit (9) from the dividend to 21 and continue with: 219 / 395

Going ahead to step 3:
395 goes into 219 0 times with a remainder of 219.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 219 leaves us with 219.
Fetch the next digit (9) from the dividend, attach it to 219 and continue: 2199 / 395

On to step 4:
395 can be fit into 2199 5 times, resulting in a remainder of 224.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we take 1975 away from 2199, we end up with 224.
Take the next digit (2) from the dividend and append it to 224, then repeat: 2242 / 395

Moving on to step 5:
When dividing 2242 by 395, we get 5 with a remainder of 267.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
The remainder is 267 after subtracting 1975 from 2242.
Append the next digit (1) from the dividend to 267 and continue with: 2671 / 395

Step 6:
2671 divided by 395 is 6 with a remainder of 301.
The number 6 becomes the next digit in our result. 
Result so far: 556.0
If we take 2370 away from 2671, we end up with 301.
Bring next digit (2) of the dividend behind the 301 and repeat the process: 3012 / 395

Advancing to step 7:
The number 395 fits into 3012 7 times, leaving a remainder of 247.
The next digit of our result is 7. 
Result so far: 5567.0
Deduct 2765 from 3012 and we're left with 247.
Append the next digit (0) from the dividend to 247 and continue with: 2470 / 395

Advancing to step 8:
The number 395 fits into 2470 6 times, leaving a remainder of 100.
Use 6 as the next digit of our solution. 
Result so far: 55676.0
Deduct 2370 from 2470 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 9:
1000 divided by 395 is 2 with a remainder of 210.
The next digit of our result is 2. 
Result so far: 55676.2
The remainder is 210 after subtracting 790 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 10:
When dividing 2100 by 395, we get 5 with a remainder of 125.
Record the quotient 5 as the next digit in the result. 
Result so far: 55676.25
If we subtract 1975 from 2100, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Let's proceed to step 11:
1250 divided by 395 is 3 with a remainder of 65.
The next digit of our result is 3. 
Result so far: 55676.253
Deduct 1185 from 1250 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 12:
650 divided by 395 is 1 with a remainder of 255.
Use 1 as the next digit of our solution. 
Result so far: 55676.2531
The remainder is 255 after subtracting 395 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Step 13:
When dividing 2550 by 395, we get 6 with a remainder of 180.
Use 6 as the next digit of our solution. 
Result so far: 55676.25316
If we take 2370 away from 2550, we end up with 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:
1800 divided by 395 is 4 with a remainder of 220.
Put 4 as the next digit of the answer. 
Result so far: 55676.253164
Deduct 1580 from 1800 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 15:
If we divide 2200 by 395, we get 5 and a remainder of 225.
Record the quotient 5 as the next digit in the result. 
Result so far: 55676.2531645
Deduct 1975 from 2200 and we're left with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

On to step 16:
395 can be fit into 2250 5 times, resulting in a remainder of 275.
Write down 5 as next digit of the result. 
Result so far: 55676.25316455
If we take 1975 away from 2250, we end up with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

In conclusion, the division gives 55676.25316455 with a balance of 2.75e-07.