We look at the division of 28518253 by 997 
The aim is to understand the frequency of 997 in 28518253.

Going ahead to step 1:
997 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 997

Moving on to step 2:
If we divide 28 by 997, we get 0 and a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 28 and we're left with 28.
Take the next digit (5) from the dividend and append it to 28, then repeat: 285 / 997

Step 3:
285 divided by 997 is 0 with a remainder of 285.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 285, we end up with 285.
Include the next digit (1) from the dividend after 285, then repeat: 2851 / 997

Moving on to step 4:
When dividing 2851 by 997, we get 2 with a remainder of 857.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 1994 from 2851 and we're left with 857.
Append the next digit (8) from the dividend to 857 and continue with: 8578 / 997

Moving on to step 5:
The number 997 fits into 8578 8 times, leaving a remainder of 602.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
The remainder is 602 after subtracting 7976 from 8578.
Grab the next digit (2) from the dividend, add it to 602, then carry on: 6022 / 997

On to step 6:
997 can be fit into 6022 6 times, resulting in a remainder of 40.
Put 6 as the next digit of the answer. 
Result so far: 286.0
If we take 5982 away from 6022, we end up with 40.
Take the next digit (5) from the dividend and append it to 40, then repeat: 405 / 997

Step 7:
When dividing 405 by 997, we get 0 with a remainder of 405.
The number 0 becomes the next digit in our result. 
Result so far: 2860.0
Deduct 0 from 405 and we're left with 405.
Bring next digit (3) of the dividend behind the 405 and repeat the process: 4053 / 997

Step 8:
997 goes into 4053 4 times with a remainder of 65.
Write down 4 as next digit of the result. 
Result so far: 28604.0
Subtracting 3988 from 4053 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 9:
The number 997 fits into 650 0 times, leaving a remainder of 650.
Record the quotient 0 as the next digit in the result. 
Result so far: 28604.0
If we take 0 away from 650, we end up with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Moving on to step 10:
The number 997 fits into 6500 6 times, leaving a remainder of 518.
Put 6 as the next digit of the answer. 
Result so far: 28604.06
Subtracting 5982 from 6500 leaves us with 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

Going ahead to step 11:
997 goes into 5180 5 times with a remainder of 195.
Put 5 as the next digit of the answer. 
Result so far: 28604.065
Subtract 4985 from 5180 to get 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Moving on to step 12:
If we divide 1950 by 997, we get 1 and a remainder of 953.
The next digit of our result is 1. 
Result so far: 28604.0651
Subtracting 997 from 1950 leaves us with 953.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9530, and continue the process.

Advancing to step 13:
If we divide 9530 by 997, we get 9 and a remainder of 557.
Record the quotient 9 as the next digit in the result. 
Result so far: 28604.06519
Subtract 8973 from 9530 to get 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Let's proceed to step 14:
997 can be fit into 5570 5 times, resulting in a remainder of 585.
Record the quotient 5 as the next digit in the result. 
Result so far: 28604.065195
If we subtract 4985 from 5570, we get 585.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

Advancing to step 15:
If we divide 5850 by 997, we get 5 and a remainder of 865.
Record the quotient 5 as the next digit in the result. 
Result so far: 28604.0651955
Subtract 4985 from 5850 to get 865.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8650, and continue the process.

The quotient of the division is 28604.0651955, and the remainder is 8.65e-06.