We divide 889280 by 21
The aim is to understand the frequency of 21 in 889280.

Advancing to step 1:
21 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 21

Going ahead to step 2:
The number 21 fits into 88 4 times, leaving a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 84 from 88 and we're left with 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 21

Going ahead to step 3:
If we divide 49 by 21, we get 2 and a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 42.0
Deduct 42 from 49 and we're left with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 21

Let's proceed to step 4:
If we divide 72 by 21, we get 3 and a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 423.0
If we subtract 63 from 72, we get 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 21

Let's proceed to step 5:
If we divide 98 by 21, we get 4 and a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 4234.0
The remainder is 14 after subtracting 84 from 98.
Append the next digit (0) from the dividend to 14 and continue with: 140 / 21

Moving on to step 6:
If we divide 140 by 21, we get 6 and a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 42346.0
Deduct 126 from 140 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 7:
140 divided by 21 is 6 with a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 42346.6
If we subtract 126 from 140, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 8:
21 can be fit into 140 6 times, resulting in a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 42346.66
Deduct 126 from 140 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

In conclusion, the division gives 42346.66 with a balance of 0.014.