28858223 ÷ 988 
The aim is to understand the frequency of 988 in 28858223.

Going ahead to step 1:
The number 988 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 988

Going ahead to step 2:
28 divided by 988 is 0 with a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 28, we end up with 28.
Take the next digit (8) from the dividend and append it to 28, then repeat: 288 / 988

Advancing to step 3:
988 goes into 288 0 times with a remainder of 288.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 288 after subtracting 0 from 288.
Fetch the next digit (5) from the dividend, attach it to 288 and continue: 2885 / 988

On to step 4:
988 can be fit into 2885 2 times, resulting in a remainder of 909.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 1976 from 2885 leaves us with 909.
Grab the next digit (8) from the dividend, add it to 909, then carry on: 9098 / 988

On to step 5:
988 goes into 9098 9 times with a remainder of 206.
The next digit of our result is 9. 
Result so far: 29.0
If we subtract 8892 from 9098, we get 206.
Take the next digit (2) from the dividend and append it to 206, then repeat: 2062 / 988

Step 6:
When dividing 2062 by 988, we get 2 with a remainder of 86.
The number 2 becomes the next digit in our result. 
Result so far: 292.0
If we subtract 1976 from 2062, we get 86.
Append the next digit (2) from the dividend to 86 and continue with: 862 / 988

On to step 7:
If we divide 862 by 988, we get 0 and a remainder of 862.
Write down 0 as next digit of the result. 
Result so far: 2920.0
Subtract 0 from 862 to get 862.
Take the next digit (3) from the dividend and append it to 862, then repeat: 8623 / 988

Let's proceed to step 8:
If we divide 8623 by 988, we get 8 and a remainder of 719.
Use 8 as the next digit of our solution. 
Result so far: 29208.0
If we subtract 7904 from 8623, we get 719.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7190, and continue the process.

Let's proceed to step 9:
988 can be fit into 7190 7 times, resulting in a remainder of 274.
Record the quotient 7 as the next digit in the result. 
Result so far: 29208.7
The remainder is 274 after subtracting 6916 from 7190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Advancing to step 10:
2740 divided by 988 is 2 with a remainder of 764.
The next digit of our result is 2. 
Result so far: 29208.72
If we subtract 1976 from 2740, we get 764.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7640, and continue the process.

Advancing to step 11:
The number 988 fits into 7640 7 times, leaving a remainder of 724.
Write down 7 as next digit of the result. 
Result so far: 29208.727
Deduct 6916 from 7640 and we're left with 724.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7240, and continue the process.

Advancing to step 12:
When dividing 7240 by 988, we get 7 with a remainder of 324.
Use 7 as the next digit of our solution. 
Result so far: 29208.7277
If we subtract 6916 from 7240, we get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

The final outcome is 29208.7277, with a leftover of 0.00324.