We look at the division of 45583151 by 998 
The aim is to understand the frequency of 998 in 45583151.

Step 1:
4 divided by 998 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 998

Moving on to step 2:
998 goes into 45 0 times with a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Fetch the next digit (5) from the dividend, attach it to 45 and continue: 455 / 998

Step 3:
455 divided by 998 is 0 with a remainder of 455.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 455 leaves us with 455.
Take the next digit (8) from the dividend and append it to 455, then repeat: 4558 / 998

Step 4:
998 goes into 4558 4 times with a remainder of 566.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 3992 from 4558, we get 566.
Append the next digit (3) from the dividend to 566 and continue with: 5663 / 998

Advancing to step 5:
998 goes into 5663 5 times with a remainder of 673.
Use 5 as the next digit of our solution. 
Result so far: 45.0
The remainder is 673 after subtracting 4990 from 5663.
Include the next digit (1) from the dividend after 673, then repeat: 6731 / 998

Moving on to step 6:
When dividing 6731 by 998, we get 6 with a remainder of 743.
Record the quotient 6 as the next digit in the result. 
Result so far: 456.0
The remainder is 743 after subtracting 5988 from 6731.
Append the next digit (5) from the dividend to 743 and continue with: 7435 / 998

Going ahead to step 7:
998 can be fit into 7435 7 times, resulting in a remainder of 449.
The next digit of our result is 7. 
Result so far: 4567.0
Deduct 6986 from 7435 and we're left with 449.
Take the next digit (1) from the dividend and append it to 449, then repeat: 4491 / 998

Advancing to step 8:
If we divide 4491 by 998, we get 4 and a remainder of 499.
Record the quotient 4 as the next digit in the result. 
Result so far: 45674.0
Deduct 3992 from 4491 and we're left with 499.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4990, and continue the process.

Step 9:
When dividing 4990 by 998, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 45674.5
If we take 4990 away from 4990, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
0 divided by 998 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 45674.5
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 11:
998 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 45674.5
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 45674.5 and a remainder of 0.0.