We look at the division of 52298191 by 663 
The aim is to understand the frequency of 663 in 52298191.

Moving on to step 1:
663 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 663

On to step 2:
The number 663 fits into 52 0 times, leaving a remainder of 52.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 52, we end up with 52.
Include the next digit (2) from the dividend after 52, then repeat: 522 / 663

Going ahead to step 3:
522 divided by 663 is 0 with a remainder of 522.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 522 leaves us with 522.
Bring next digit (9) of the dividend behind the 522 and repeat the process: 5229 / 663

Moving on to step 4:
If we divide 5229 by 663, we get 7 and a remainder of 588.
The next digit of our result is 7. 
Result so far: 7.0
If we take 4641 away from 5229, we end up with 588.
Grab the next digit (8) from the dividend, add it to 588, then carry on: 5888 / 663

Advancing to step 5:
663 can be fit into 5888 8 times, resulting in a remainder of 584.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
The remainder is 584 after subtracting 5304 from 5888.
Bring next digit (1) of the dividend behind the 584 and repeat the process: 5841 / 663

Step 6:
663 goes into 5841 8 times with a remainder of 537.
Write down 8 as next digit of the result. 
Result so far: 788.0
Subtracting 5304 from 5841 leaves us with 537.
Take the next digit (9) from the dividend and append it to 537, then repeat: 5379 / 663

Advancing to step 7:
5379 divided by 663 is 8 with a remainder of 75.
The number 8 becomes the next digit in our result. 
Result so far: 7888.0
Subtract 5304 from 5379 to get 75.
Take the next digit (1) from the dividend and append it to 75, then repeat: 751 / 663

Moving on to step 8:
The number 663 fits into 751 1 times, leaving a remainder of 88.
The next digit of our result is 1. 
Result so far: 78881.0
If we subtract 663 from 751, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 9:
The number 663 fits into 880 1 times, leaving a remainder of 217.
Write down 1 as next digit of the result. 
Result so far: 78881.1
If we take 663 away from 880, we end up with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Advancing to step 10:
663 can be fit into 2170 3 times, resulting in a remainder of 181.
The number 3 becomes the next digit in our result. 
Result so far: 78881.13
If we subtract 1989 from 2170, we get 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

Advancing to step 11:
663 can be fit into 1810 2 times, resulting in a remainder of 484.
Record the quotient 2 as the next digit in the result. 
Result so far: 78881.132
If we take 1326 away from 1810, we end up with 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Advancing to step 12:
663 goes into 4840 7 times with a remainder of 199.
Use 7 as the next digit of our solution. 
Result so far: 78881.1327
If we take 4641 away from 4840, we end up with 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Let's proceed to step 13:
The number 663 fits into 1990 3 times, leaving a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 78881.13273
If we subtract 1989 from 1990, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 14:
When dividing 10 by 663, we get 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 78881.13273
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 15:
100 divided by 663 is 0 with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 78881.13273
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final result is 78881.13273 with a remainder of 1e-06.