91671990 ÷ 889 
The aim is to understand the frequency of 889 in 91671990.

Step 1:
The number 889 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 889

Advancing to step 2:
If we divide 91 by 889, we get 0 and a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Fetch the next digit (6) from the dividend, attach it to 91 and continue: 916 / 889

Let's proceed to step 3:
The number 889 fits into 916 1 times, leaving a remainder of 27.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 889 from 916 and we're left with 27.
Fetch the next digit (7) from the dividend, attach it to 27 and continue: 277 / 889

Step 4:
If we divide 277 by 889, we get 0 and a remainder of 277.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we take 0 away from 277, we end up with 277.
Include the next digit (1) from the dividend after 277, then repeat: 2771 / 889

Moving on to step 5:
If we divide 2771 by 889, we get 3 and a remainder of 104.
The number 3 becomes the next digit in our result. 
Result so far: 103.0
If we take 2667 away from 2771, we end up with 104.
Append the next digit (9) from the dividend to 104 and continue with: 1049 / 889

Moving on to step 6:
889 can be fit into 1049 1 times, resulting in a remainder of 160.
The next digit of our result is 1. 
Result so far: 1031.0
Deduct 889 from 1049 and we're left with 160.
Bring next digit (9) of the dividend behind the 160 and repeat the process: 1609 / 889

On to step 7:
889 goes into 1609 1 times with a remainder of 720.
The next digit of our result is 1. 
Result so far: 10311.0
If we take 889 away from 1609, we end up with 720.
Take the next digit (0) from the dividend and append it to 720, then repeat: 7200 / 889

On to step 8:
889 can be fit into 7200 8 times, resulting in a remainder of 88.
The number 8 becomes the next digit in our result. 
Result so far: 103118.0
Subtracting 7112 from 7200 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Let's proceed to step 9:
The number 889 fits into 880 0 times, leaving a remainder of 880.
Put 0 as the next digit of the answer. 
Result so far: 103118.0
If we take 0 away from 880, we end up with 880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8800, and continue the process.

Moving on to step 10:
8800 divided by 889 is 9 with a remainder of 799.
The number 9 becomes the next digit in our result. 
Result so far: 103118.09
The remainder is 799 after subtracting 8001 from 8800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7990, and continue the process.

On to step 11:
If we divide 7990 by 889, we get 8 and a remainder of 878.
Use 8 as the next digit of our solution. 
Result so far: 103118.098
If we subtract 7112 from 7990, we get 878.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8780, and continue the process.

On to step 12:
The number 889 fits into 8780 9 times, leaving a remainder of 779.
Write down 9 as next digit of the result. 
Result so far: 103118.0989
Subtract 8001 from 8780 to get 779.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7790, and continue the process.

Advancing to step 13:
The number 889 fits into 7790 8 times, leaving a remainder of 678.
The number 8 becomes the next digit in our result. 
Result so far: 103118.09898
Deduct 7112 from 7790 and we're left with 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

Advancing to step 14:
889 goes into 6780 7 times with a remainder of 557.
Record the quotient 7 as the next digit in the result. 
Result so far: 103118.098987
Subtract 6223 from 6780 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.

Step 15:
If we divide 5570 by 889, we get 6 and a remainder of 236.
Write down 6 as next digit of the result. 
Result so far: 103118.0989876
If we subtract 5334 from 5570, we get 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

On to step 16:
2360 divided by 889 is 2 with a remainder of 582.
Put 2 as the next digit of the answer. 
Result so far: 103118.09898762
The remainder is 582 after subtracting 1778 from 2360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Our division results in 103118.09898762 with a remaining 5.82e-07.