We divide 10010672 by 90
The aim is to understand the frequency of 90 in 10010672.

Step 1:
The number 90 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 90

Going ahead to step 2:
If we divide 10 by 90, we get 0 and a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 10 after subtracting 0 from 10.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 90

Let's proceed to step 3:
100 divided by 90 is 1 with a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 90 from 100 to get 10.
Bring next digit (1) of the dividend behind the 10 and repeat the process: 101 / 90

Let's proceed to step 4:
90 can be fit into 101 1 times, resulting in a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 90 from 101 leaves us with 11.
Grab the next digit (0) from the dividend, add it to 11, then carry on: 110 / 90

Step 5:
90 goes into 110 1 times with a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 111.0
If we take 90 away from 110, we end up with 20.
Include the next digit (6) from the dividend after 20, then repeat: 206 / 90

Going ahead to step 6:
90 can be fit into 206 2 times, resulting in a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 1112.0
If we subtract 180 from 206, we get 26.
Bring next digit (7) of the dividend behind the 26 and repeat the process: 267 / 90

Step 7:
90 goes into 267 2 times with a remainder of 87.
Use 2 as the next digit of our solution. 
Result so far: 11122.0
If we take 180 away from 267, we end up with 87.
Grab the next digit (2) from the dividend, add it to 87, then carry on: 872 / 90

Advancing to step 8:
872 divided by 90 is 9 with a remainder of 62.
Record the quotient 9 as the next digit in the result. 
Result so far: 111229.0
Subtracting 810 from 872 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 9:
The number 90 fits into 620 6 times, leaving a remainder of 80.
The number 6 becomes the next digit in our result. 
Result so far: 111229.6
Deduct 540 from 620 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 10:
If we divide 800 by 90, we get 8 and a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 111229.68
Deduct 720 from 800 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 11:
The number 90 fits into 800 8 times, leaving a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 111229.688
If we subtract 720 from 800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

In conclusion, the division gives 111229.688 with a balance of 0.008.