We divide 15644385 by 220
The aim is to understand the frequency of 220 in 15644385.

Moving on to step 1:
If we divide 1 by 220, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 220

On to step 2:
220 goes into 15 0 times with a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Bring next digit (6) of the dividend behind the 15 and repeat the process: 156 / 220

On to step 3:
220 goes into 156 0 times with a remainder of 156.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 156 to get 156.
Bring next digit (4) of the dividend behind the 156 and repeat the process: 1564 / 220

Advancing to step 4:
The number 220 fits into 1564 7 times, leaving a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 1540 from 1564, we get 24.
Fetch the next digit (4) from the dividend, attach it to 24 and continue: 244 / 220

Moving on to step 5:
When dividing 244 by 220, we get 1 with a remainder of 24.
Put 1 as the next digit of the answer. 
Result so far: 71.0
Subtract 220 from 244 to get 24.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 220

Advancing to step 6:
220 can be fit into 243 1 times, resulting in a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 711.0
Subtracting 220 from 243 leaves us with 23.
Bring next digit (8) of the dividend behind the 23 and repeat the process: 238 / 220

On to step 7:
220 goes into 238 1 times with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 7111.0
Subtracting 220 from 238 leaves us with 18.
Include the next digit (5) from the dividend after 18, then repeat: 185 / 220

Going ahead to step 8:
The number 220 fits into 185 0 times, leaving a remainder of 185.
The number 0 becomes the next digit in our result. 
Result so far: 71110.0
If we subtract 0 from 185, we get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Moving on to step 9:
The number 220 fits into 1850 8 times, leaving a remainder of 90.
The next digit of our result is 8. 
Result so far: 71110.8
Subtract 1760 from 1850 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 10:
900 divided by 220 is 4 with a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 71110.84
Subtracting 880 from 900 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.

Let's proceed to step 11:
The number 220 fits into 200 0 times, leaving a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 71110.84
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 12:
The number 220 fits into 2000 9 times, leaving a remainder of 20.
Write down 9 as next digit of the result. 
Result so far: 71110.8409
Deduct 1980 from 2000 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.

Moving on to step 13:
220 can be fit into 200 0 times, resulting in a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 71110.8409
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 14:
The number 220 fits into 2000 9 times, leaving a remainder of 20.
Write down 9 as next digit of the result. 
Result so far: 71110.840909
If we subtract 1980 from 2000, we get 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 15:
When dividing 200 by 220, we get 0 with a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 71110.840909
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 16:
2000 divided by 220 is 9 with a remainder of 20.
Record the quotient 9 as the next digit in the result. 
Result so far: 71110.84090909
Deduct 1980 from 2000 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.

In conclusion, the division gives 71110.84090909 with a balance of 2e-08.