We look at the division of 55792357 by 221 
The aim is to understand the frequency of 221 in 55792357.

Let's proceed to step 1:
When dividing 5 by 221, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 221

On to step 2:
221 can be fit into 55 0 times, resulting in a remainder of 55.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Take the next digit (7) from the dividend and append it to 55, then repeat: 557 / 221

Advancing to step 3:
The number 221 fits into 557 2 times, leaving a remainder of 115.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 442 from 557 leaves us with 115.
Fetch the next digit (9) from the dividend, attach it to 115 and continue: 1159 / 221

On to step 4:
221 can be fit into 1159 5 times, resulting in a remainder of 54.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Subtract 1105 from 1159 to get 54.
Bring next digit (2) of the dividend behind the 54 and repeat the process: 542 / 221

Moving on to step 5:
The number 221 fits into 542 2 times, leaving a remainder of 100.
The number 2 becomes the next digit in our result. 
Result so far: 252.0
The remainder is 100 after subtracting 442 from 542.
Fetch the next digit (3) from the dividend, attach it to 100 and continue: 1003 / 221

Going ahead to step 6:
221 can be fit into 1003 4 times, resulting in a remainder of 119.
The number 4 becomes the next digit in our result. 
Result so far: 2524.0
If we take 884 away from 1003, we end up with 119.
Include the next digit (5) from the dividend after 119, then repeat: 1195 / 221

On to step 7:
221 goes into 1195 5 times with a remainder of 90.
Put 5 as the next digit of the answer. 
Result so far: 25245.0
Subtract 1105 from 1195 to get 90.
Take the next digit (7) from the dividend and append it to 90, then repeat: 907 / 221

Moving on to step 8:
907 divided by 221 is 4 with a remainder of 23.
Use 4 as the next digit of our solution. 
Result so far: 252454.0
Deduct 884 from 907 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 9:
When dividing 230 by 221, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 252454.1
If we subtract 221 from 230, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 10:
When dividing 90 by 221, we get 0 with a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 252454.1
If we take 0 away from 90, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Advancing to step 11:
When dividing 900 by 221, we get 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 252454.104
If we subtract 884 from 900, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 12:
221 can be fit into 160 0 times, resulting in a remainder of 160.
Write down 0 as next digit of the result. 
Result so far: 252454.104
Subtract 0 from 160 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 13:
221 goes into 1600 7 times with a remainder of 53.
Use 7 as the next digit of our solution. 
Result so far: 252454.10407
Subtract 1547 from 1600 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 14:
221 can be fit into 530 2 times, resulting in a remainder of 88.
Put 2 as the next digit of the answer. 
Result so far: 252454.104072
If we take 442 away from 530, we end up with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Step 15:
221 goes into 880 3 times with a remainder of 217.
Use 3 as the next digit of our solution. 
Result so far: 252454.1040723
Subtracting 663 from 880 leaves us with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Going ahead to step 16:
221 goes into 2170 9 times with a remainder of 181.
Put 9 as the next digit of the answer. 
Result so far: 252454.10407239
Subtract 1989 from 2170 to get 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

In conclusion, the division gives 252454.10407239 with a balance of 1.81e-07.