We look at the division of 98781088 by 891 
The aim is to understand the frequency of 891 in 98781088.

Let's proceed to step 1:
9 divided by 891 is 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 891

Going ahead to step 2:
98 divided by 891 is 0 with a remainder of 98.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 98 after subtracting 0 from 98.
Append the next digit (7) from the dividend to 98 and continue with: 987 / 891

Going ahead to step 3:
891 can be fit into 987 1 times, resulting in a remainder of 96.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 891 from 987 and we're left with 96.
Fetch the next digit (8) from the dividend, attach it to 96 and continue: 968 / 891

Moving on to step 4:
968 divided by 891 is 1 with a remainder of 77.
Put 1 as the next digit of the answer. 
Result so far: 11.0
The remainder is 77 after subtracting 891 from 968.
Fetch the next digit (1) from the dividend, attach it to 77 and continue: 771 / 891

Moving on to step 5:
891 goes into 771 0 times with a remainder of 771.
Put 0 as the next digit of the answer. 
Result so far: 110.0
Deduct 0 from 771 and we're left with 771.
Fetch the next digit (0) from the dividend, attach it to 771 and continue: 7710 / 891

Going ahead to step 6:
7710 divided by 891 is 8 with a remainder of 582.
Use 8 as the next digit of our solution. 
Result so far: 1108.0
If we take 7128 away from 7710, we end up with 582.
Include the next digit (8) from the dividend after 582, then repeat: 5828 / 891

Moving on to step 7:
If we divide 5828 by 891, we get 6 and a remainder of 482.
Put 6 as the next digit of the answer. 
Result so far: 11086.0
Subtract 5346 from 5828 to get 482.
Bring next digit (8) of the dividend behind the 482 and repeat the process: 4828 / 891

Going ahead to step 8:
If we divide 4828 by 891, we get 5 and a remainder of 373.
Put 5 as the next digit of the answer. 
Result so far: 110865.0
Subtracting 4455 from 4828 leaves us with 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

Moving on to step 9:
3730 divided by 891 is 4 with a remainder of 166.
The next digit of our result is 4. 
Result so far: 110865.4
Deduct 3564 from 3730 and we're left with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Step 10:
When dividing 1660 by 891, we get 1 with a remainder of 769.
Put 1 as the next digit of the answer. 
Result so far: 110865.41
Subtracting 891 from 1660 leaves us with 769.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7690, and continue the process.

Let's proceed to step 11:
The number 891 fits into 7690 8 times, leaving a remainder of 562.
Use 8 as the next digit of our solution. 
Result so far: 110865.418
Deduct 7128 from 7690 and we're left with 562.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5620, and continue the process.

Step 12:
The number 891 fits into 5620 6 times, leaving a remainder of 274.
Use 6 as the next digit of our solution. 
Result so far: 110865.4186
Subtracting 5346 from 5620 leaves us with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Moving on to step 13:
When dividing 2740 by 891, we get 3 with a remainder of 67.
Record the quotient 3 as the next digit in the result. 
Result so far: 110865.41863
If we subtract 2673 from 2740, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 14:
891 can be fit into 670 0 times, resulting in a remainder of 670.
The next digit of our result is 0. 
Result so far: 110865.41863
The remainder is 670 after subtracting 0 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

On to step 15:
The number 891 fits into 6700 7 times, leaving a remainder of 463.
Write down 7 as next digit of the result. 
Result so far: 110865.4186307
If we subtract 6237 from 6700, we get 463.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4630, and continue the process.

Going ahead to step 16:
When dividing 4630 by 891, we get 5 with a remainder of 175.
Write down 5 as next digit of the result. 
Result so far: 110865.41863075
If we take 4455 away from 4630, we end up with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

In conclusion, the division gives 110865.41863075 with a balance of 1.75e-07.