Let's divide 58068631 by 90
The aim is to understand the frequency of 90 in 58068631.

Moving on to step 1:
When dividing 5 by 90, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 90

On to step 2:
When dividing 58 by 90, we get 0 with a remainder of 58.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 58 leaves us with 58.
Fetch the next digit (0) from the dividend, attach it to 58 and continue: 580 / 90

Advancing to step 3:
90 can be fit into 580 6 times, resulting in a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 540 from 580, we get 40.
Bring next digit (6) of the dividend behind the 40 and repeat the process: 406 / 90

Let's proceed to step 4:
The number 90 fits into 406 4 times, leaving a remainder of 46.
Write down 4 as next digit of the result. 
Result so far: 64.0
Subtracting 360 from 406 leaves us with 46.
Bring next digit (8) of the dividend behind the 46 and repeat the process: 468 / 90

Going ahead to step 5:
90 goes into 468 5 times with a remainder of 18.
The number 5 becomes the next digit in our result. 
Result so far: 645.0
Subtract 450 from 468 to get 18.
Take the next digit (6) from the dividend and append it to 18, then repeat: 186 / 90

Advancing to step 6:
90 can be fit into 186 2 times, resulting in a remainder of 6.
The next digit of our result is 2. 
Result so far: 6452.0
Subtract 180 from 186 to get 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 90

Let's proceed to step 7:
The number 90 fits into 63 0 times, leaving a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 64520.0
Subtracting 0 from 63 leaves us with 63.
Append the next digit (1) from the dividend to 63 and continue with: 631 / 90

Advancing to step 8:
90 can be fit into 631 7 times, resulting in a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 645207.0
Deduct 630 from 631 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 9:
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: 645207.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
100 divided by 90 is 1 with a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 645207.01
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
If we divide 100 by 90, we get 1 and a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 645207.011
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 645207.011, with a leftover of 0.001.