63411 divided by 90 
The aim is to understand the frequency of 90 in 63411.

Moving on to step 1:
90 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 90

On to step 2:
63 divided by 90 is 0 with a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Bring next digit (4) of the dividend behind the 63 and repeat the process: 634 / 90

Advancing to step 3:
If we divide 634 by 90, we get 7 and a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 630 from 634, we get 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 90

On to step 4:
When dividing 41 by 90, we get 0 with a remainder of 41.
Put 0 as the next digit of the answer. 
Result so far: 70.0
If we subtract 0 from 41, we get 41.
Fetch the next digit (1) from the dividend, attach it to 41 and continue: 411 / 90

Moving on to step 5:
90 can be fit into 411 4 times, resulting in a remainder of 51.
The next digit of our result is 4. 
Result so far: 704.0
If we subtract 360 from 411, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 6:
When dividing 510 by 90, we get 5 with a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 704.5
If we subtract 450 from 510, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 7:
600 divided by 90 is 6 with a remainder of 60.
The next digit of our result is 6. 
Result so far: 704.56
If we subtract 540 from 600, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 8:
The number 90 fits into 600 6 times, leaving a remainder of 60.
Put 6 as the next digit of the answer. 
Result so far: 704.566
The remainder is 60 after subtracting 540 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

After the division, we end up with 704.566 and a remainder of 0.006.