71785597 ÷ 998 
The aim is to understand the frequency of 998 in 71785597.

Moving on to step 1:
7 divided by 998 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (1) from the dividend, add it to 7, then carry on: 71 / 998

Let's proceed to step 2:
998 can be fit into 71 0 times, resulting in a remainder of 71.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 71 to get 71.
Take the next digit (7) from the dividend and append it to 71, then repeat: 717 / 998

Step 3:
If we divide 717 by 998, we get 0 and a remainder of 717.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 717, we end up with 717.
Append the next digit (8) from the dividend to 717 and continue with: 7178 / 998

On to step 4:
7178 divided by 998 is 7 with a remainder of 192.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 192 after subtracting 6986 from 7178.
Grab the next digit (5) from the dividend, add it to 192, then carry on: 1925 / 998

Moving on to step 5:
998 goes into 1925 1 times with a remainder of 927.
Put 1 as the next digit of the answer. 
Result so far: 71.0
Subtracting 998 from 1925 leaves us with 927.
Fetch the next digit (5) from the dividend, attach it to 927 and continue: 9275 / 998

Step 6:
When dividing 9275 by 998, we get 9 with a remainder of 293.
Use 9 as the next digit of our solution. 
Result so far: 719.0
The remainder is 293 after subtracting 8982 from 9275.
Append the next digit (9) from the dividend to 293 and continue with: 2939 / 998

Advancing to step 7:
998 can be fit into 2939 2 times, resulting in a remainder of 943.
The number 2 becomes the next digit in our result. 
Result so far: 7192.0
The remainder is 943 after subtracting 1996 from 2939.
Include the next digit (7) from the dividend after 943, then repeat: 9437 / 998

Let's proceed to step 8:
If we divide 9437 by 998, we get 9 and a remainder of 455.
Write down 9 as next digit of the result. 
Result so far: 71929.0
Subtract 8982 from 9437 to get 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Going ahead to step 9:
4550 divided by 998 is 4 with a remainder of 558.
The next digit of our result is 4. 
Result so far: 71929.4
If we take 3992 away from 4550, we end up with 558.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5580, and continue the process.

Advancing to step 10:
5580 divided by 998 is 5 with a remainder of 590.
Record the quotient 5 as the next digit in the result. 
Result so far: 71929.45
Subtract 4990 from 5580 to get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Let's proceed to step 11:
5900 divided by 998 is 5 with a remainder of 910.
Record the quotient 5 as the next digit in the result. 
Result so far: 71929.455
Deduct 4990 from 5900 and we're left with 910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9100, and continue the process.

Our division results in 71929.455 with a remaining 0.091.