7728158 ÷ 998 
The aim is to understand the frequency of 998 in 7728158.

Advancing to step 1:
When dividing 7 by 998, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 998

Advancing to step 2:
998 can be fit into 77 0 times, resulting in a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Include the next digit (2) from the dividend after 77, then repeat: 772 / 998

Step 3:
When dividing 772 by 998, we get 0 with a remainder of 772.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 772 to get 772.
Include the next digit (8) from the dividend after 772, then repeat: 7728 / 998

Moving on to step 4:
7728 divided by 998 is 7 with a remainder of 742.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 742 after subtracting 6986 from 7728.
Fetch the next digit (1) from the dividend, attach it to 742 and continue: 7421 / 998

Step 5:
The number 998 fits into 7421 7 times, leaving a remainder of 435.
Use 7 as the next digit of our solution. 
Result so far: 77.0
Subtracting 6986 from 7421 leaves us with 435.
Grab the next digit (5) from the dividend, add it to 435, then carry on: 4355 / 998

Step 6:
998 goes into 4355 4 times with a remainder of 363.
Put 4 as the next digit of the answer. 
Result so far: 774.0
Deduct 3992 from 4355 and we're left with 363.
Append the next digit (8) from the dividend to 363 and continue with: 3638 / 998

Going ahead to step 7:
3638 divided by 998 is 3 with a remainder of 644.
Write down 3 as next digit of the result. 
Result so far: 7743.0
Subtract 2994 from 3638 to get 644.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6440, and continue the process.

Going ahead to step 8:
When dividing 6440 by 998, we get 6 with a remainder of 452.
Record the quotient 6 as the next digit in the result. 
Result so far: 7743.6
Subtract 5988 from 6440 to get 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Advancing to step 9:
4520 divided by 998 is 4 with a remainder of 528.
Put 4 as the next digit of the answer. 
Result so far: 7743.64
If we subtract 3992 from 4520, we get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Moving on to step 10:
When dividing 5280 by 998, we get 5 with a remainder of 290.
The next digit of our result is 5. 
Result so far: 7743.645
The remainder is 290 after subtracting 4990 from 5280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

On to step 11:
998 goes into 2900 2 times with a remainder of 904.
Use 2 as the next digit of our solution. 
Result so far: 7743.6452
Deduct 1996 from 2900 and we're left with 904.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9040, and continue the process.

Let's proceed to step 12:
The number 998 fits into 9040 9 times, leaving a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 7743.64529
Subtracting 8982 from 9040 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 13:
When dividing 580 by 998, we get 0 with a remainder of 580.
The number 0 becomes the next digit in our result. 
Result so far: 7743.64529
Deduct 0 from 580 and we're left with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Moving on to step 14:
When dividing 5800 by 998, we get 5 with a remainder of 810.
Use 5 as the next digit of our solution. 
Result so far: 7743.6452905
Deduct 4990 from 5800 and we're left with 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Advancing to step 15:
998 goes into 8100 8 times with a remainder of 116.
Write down 8 as next digit of the result. 
Result so far: 7743.64529058
Deduct 7984 from 8100 and we're left with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

In conclusion, the division gives 7743.64529058 with a balance of 1.16e-07.