We divide 81321120 by 890
The aim is to understand the frequency of 890 in 81321120.

Going ahead to step 1:
The number 890 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 890

Advancing to step 2:
81 divided by 890 is 0 with a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Bring next digit (3) of the dividend behind the 81 and repeat the process: 813 / 890

Advancing to step 3:
The number 890 fits into 813 0 times, leaving a remainder of 813.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 813 to get 813.
Include the next digit (2) from the dividend after 813, then repeat: 8132 / 890

On to step 4:
890 goes into 8132 9 times with a remainder of 122.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtract 8010 from 8132 to get 122.
Include the next digit (1) from the dividend after 122, then repeat: 1221 / 890

Step 5:
When dividing 1221 by 890, we get 1 with a remainder of 331.
The next digit of our result is 1. 
Result so far: 91.0
If we subtract 890 from 1221, we get 331.
Append the next digit (1) from the dividend to 331 and continue with: 3311 / 890

Advancing to step 6:
3311 divided by 890 is 3 with a remainder of 641.
Write down 3 as next digit of the result. 
Result so far: 913.0
If we subtract 2670 from 3311, we get 641.
Include the next digit (2) from the dividend after 641, then repeat: 6412 / 890

Advancing to step 7:
When dividing 6412 by 890, we get 7 with a remainder of 182.
The next digit of our result is 7. 
Result so far: 9137.0
The remainder is 182 after subtracting 6230 from 6412.
Grab the next digit (0) from the dividend, add it to 182, then carry on: 1820 / 890

Let's proceed to step 8:
1820 divided by 890 is 2 with a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 91372.0
If we take 1780 away from 1820, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
890 can be fit into 400 0 times, resulting in a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 91372.0
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 10:
The number 890 fits into 4000 4 times, leaving a remainder of 440.
The number 4 becomes the next digit in our result. 
Result so far: 91372.04
Subtract 3560 from 4000 to get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 11:
890 goes into 4400 4 times with a remainder of 840.
Use 4 as the next digit of our solution. 
Result so far: 91372.044
Subtract 3560 from 4400 to get 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

After the division, we end up with 91372.044 and a remainder of 0.084.