We divide 84122864 by 221
The aim is to understand the frequency of 221 in 84122864.

Going ahead to step 1:
If we divide 8 by 221, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 221

Let's proceed to step 2:
When dividing 84 by 221, we get 0 with a remainder of 84.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 84 and we're left with 84.
Fetch the next digit (1) from the dividend, attach it to 84 and continue: 841 / 221

Step 3:
221 goes into 841 3 times with a remainder of 178.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 178 after subtracting 663 from 841.
Fetch the next digit (2) from the dividend, attach it to 178 and continue: 1782 / 221

Let's proceed to step 4:
221 can be fit into 1782 8 times, resulting in a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 38.0
Subtract 1768 from 1782 to get 14.
Include the next digit (2) from the dividend after 14, then repeat: 142 / 221

On to step 5:
221 can be fit into 142 0 times, resulting in a remainder of 142.
Record the quotient 0 as the next digit in the result. 
Result so far: 380.0
The remainder is 142 after subtracting 0 from 142.
Take the next digit (8) from the dividend and append it to 142, then repeat: 1428 / 221

On to step 6:
221 can be fit into 1428 6 times, resulting in a remainder of 102.
Record the quotient 6 as the next digit in the result. 
Result so far: 3806.0
Deduct 1326 from 1428 and we're left with 102.
Bring next digit (6) of the dividend behind the 102 and repeat the process: 1026 / 221

Moving on to step 7:
1026 divided by 221 is 4 with a remainder of 142.
Record the quotient 4 as the next digit in the result. 
Result so far: 38064.0
If we subtract 884 from 1026, we get 142.
Fetch the next digit (4) from the dividend, attach it to 142 and continue: 1424 / 221

Let's proceed to step 8:
1424 divided by 221 is 6 with a remainder of 98.
The number 6 becomes the next digit in our result. 
Result so far: 380646.0
If we take 1326 away from 1424, we end up 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.

Advancing to step 9:
221 goes into 980 4 times with a remainder of 96.
The number 4 becomes the next digit in our result. 
Result so far: 380646.4
If we take 884 away from 980, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Advancing to step 10:
960 divided by 221 is 4 with a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 380646.44
Subtracting 884 from 960 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

The final outcome is 380646.44, with a leftover of 0.076.