28915979 ÷ 863 
The aim is to understand the frequency of 863 in 28915979.

Step 1:
When dividing 2 by 863, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 863

On to step 2:
863 can be fit into 28 0 times, resulting in a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 28 after subtracting 0 from 28.
Take the next digit (9) from the dividend and append it to 28, then repeat: 289 / 863

Moving on to step 3:
289 divided by 863 is 0 with a remainder of 289.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 289 leaves us with 289.
Take the next digit (1) from the dividend and append it to 289, then repeat: 2891 / 863

Let's proceed to step 4:
863 can be fit into 2891 3 times, resulting in a remainder of 302.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 2589 from 2891 to get 302.
Grab the next digit (5) from the dividend, add it to 302, then carry on: 3025 / 863

Going ahead to step 5:
863 goes into 3025 3 times with a remainder of 436.
Put 3 as the next digit of the answer. 
Result so far: 33.0
If we take 2589 away from 3025, we end up with 436.
Bring next digit (9) of the dividend behind the 436 and repeat the process: 4369 / 863

Let's proceed to step 6:
863 goes into 4369 5 times with a remainder of 54.
Write down 5 as next digit of the result. 
Result so far: 335.0
The remainder is 54 after subtracting 4315 from 4369.
Grab the next digit (7) from the dividend, add it to 54, then carry on: 547 / 863

Advancing to step 7:
863 can be fit into 547 0 times, resulting in a remainder of 547.
Put 0 as the next digit of the answer. 
Result so far: 3350.0
If we take 0 away from 547, we end up with 547.
Append the next digit (9) from the dividend to 547 and continue with: 5479 / 863

Step 8:
When dividing 5479 by 863, we get 6 with a remainder of 301.
The next digit of our result is 6. 
Result so far: 33506.0
If we subtract 5178 from 5479, we get 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

Going ahead to step 9:
863 can be fit into 3010 3 times, resulting in a remainder of 421.
The next digit of our result is 3. 
Result so far: 33506.3
Deduct 2589 from 3010 and we're left with 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

Let's proceed to step 10:
The number 863 fits into 4210 4 times, leaving a remainder of 758.
Put 4 as the next digit of the answer. 
Result so far: 33506.34
Subtracting 3452 from 4210 leaves us with 758.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7580, and continue the process.

Advancing to step 11:
When dividing 7580 by 863, we get 8 with a remainder of 676.
Use 8 as the next digit of our solution. 
Result so far: 33506.348
If we take 6904 away from 7580, we end up with 676.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6760, and continue the process.

Going ahead to step 12:
The number 863 fits into 6760 7 times, leaving a remainder of 719.
Record the quotient 7 as the next digit in the result. 
Result so far: 33506.3487
Subtract 6041 from 6760 to 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.

Advancing to step 13:
The number 863 fits into 7190 8 times, leaving a remainder of 286.
Put 8 as the next digit of the answer. 
Result so far: 33506.34878
The remainder is 286 after subtracting 6904 from 7190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Advancing to step 14:
863 goes into 2860 3 times with a remainder of 271.
Write down 3 as next digit of the result. 
Result so far: 33506.348783
Deduct 2589 from 2860 and we're left with 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Let's proceed to step 15:
If we divide 2710 by 863, we get 3 and a remainder of 121.
Use 3 as the next digit of our solution. 
Result so far: 33506.3487833
Subtracting 2589 from 2710 leaves us with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

After the division, we end up with 33506.3487833 and a remainder of 1.21e-06.