21465288 divided by 863 
The aim is to understand the frequency of 863 in 21465288.

Step 1:
2 divided by 863 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 863

Let's proceed to step 2:
If we divide 21 by 863, we get 0 and a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Grab the next digit (4) from the dividend, add it to 21, then carry on: 214 / 863

Going ahead to step 3:
The number 863 fits into 214 0 times, leaving a remainder of 214.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 214 to get 214.
Append the next digit (6) from the dividend to 214 and continue with: 2146 / 863

Step 4:
863 goes into 2146 2 times with a remainder of 420.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 1726 from 2146 and we're left with 420.
Fetch the next digit (5) from the dividend, attach it to 420 and continue: 4205 / 863

Step 5:
863 goes into 4205 4 times with a remainder of 753.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Deduct 3452 from 4205 and we're left with 753.
Fetch the next digit (2) from the dividend, attach it to 753 and continue: 7532 / 863

On to step 6:
If we divide 7532 by 863, we get 8 and a remainder of 628.
Record the quotient 8 as the next digit in the result. 
Result so far: 248.0
If we subtract 6904 from 7532, we get 628.
Grab the next digit (8) from the dividend, add it to 628, then carry on: 6288 / 863

Let's proceed to step 7:
If we divide 6288 by 863, we get 7 and a remainder of 247.
Use 7 as the next digit of our solution. 
Result so far: 2487.0
Subtracting 6041 from 6288 leaves us with 247.
Bring next digit (8) of the dividend behind the 247 and repeat the process: 2478 / 863

Advancing to step 8:
2478 divided by 863 is 2 with a remainder of 752.
Record the quotient 2 as the next digit in the result. 
Result so far: 24872.0
The remainder is 752 after subtracting 1726 from 2478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7520, and continue the process.

Let's proceed to step 9:
863 can be fit into 7520 8 times, resulting in a remainder of 616.
Record the quotient 8 as the next digit in the result. 
Result so far: 24872.8
If we take 6904 away from 7520, we end up with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Advancing to step 10:
If we divide 6160 by 863, we get 7 and a remainder of 119.
Use 7 as the next digit of our solution. 
Result so far: 24872.87
Deduct 6041 from 6160 and we're left with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Going ahead to step 11:
If we divide 1190 by 863, we get 1 and a remainder of 327.
Write down 1 as next digit of the result. 
Result so far: 24872.871
If we subtract 863 from 1190, we get 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Advancing to step 12:
863 goes into 3270 3 times with a remainder of 681.
Write down 3 as next digit of the result. 
Result so far: 24872.8713
The remainder is 681 after subtracting 2589 from 3270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6810, and continue the process.

Let's proceed to step 13:
If we divide 6810 by 863, we get 7 and a remainder of 769.
Record the quotient 7 as the next digit in the result. 
Result so far: 24872.87137
Deduct 6041 from 6810 and we're left with 769.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7690, and continue the process.

On to step 14:
If we divide 7690 by 863, we get 8 and a remainder of 786.
Record the quotient 8 as the next digit in the result. 
Result so far: 24872.871378
The remainder is 786 after subtracting 6904 from 7690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7860, and continue the process.

Step 15:
863 can be fit into 7860 9 times, resulting in a remainder of 93.
Put 9 as the next digit of the answer. 
Result so far: 24872.8713789
The remainder is 93 after subtracting 7767 from 7860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Advancing to step 16:
930 divided by 863 is 1 with a remainder of 67.
Put 1 as the next digit of the answer. 
Result so far: 24872.87137891
If we take 863 away from 930, we end up with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

The final result is 24872.87137891 with a remainder of 6.7e-08.