587462 ÷ 90 
The aim is to understand the frequency of 90 in 587462.

Advancing to step 1:
If we divide 5 by 90, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 90

Moving on to step 2:
The number 90 fits into 58 0 times, leaving a remainder of 58.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 58, we end up with 58.
Fetch the next digit (7) from the dividend, attach it to 58 and continue: 587 / 90

Step 3:
If we divide 587 by 90, we get 6 and a remainder of 47.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 540 from 587 and we're left with 47.
Append the next digit (4) from the dividend to 47 and continue with: 474 / 90

Let's proceed to step 4:
474 divided by 90 is 5 with a remainder of 24.
The next digit of our result is 5. 
Result so far: 65.0
Subtract 450 from 474 to get 24.
Grab the next digit (6) from the dividend, add it to 24, then carry on: 246 / 90

On to step 5:
When dividing 246 by 90, we get 2 with a remainder of 66.
Write down 2 as next digit of the result. 
Result so far: 652.0
Subtract 180 from 246 to get 66.
Grab the next digit (2) from the dividend, add it to 66, then carry on: 662 / 90

Moving on to step 6:
90 goes into 662 7 times with a remainder of 32.
Write down 7 as next digit of the result. 
Result so far: 6527.0
Deduct 630 from 662 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 7:
The number 90 fits into 320 3 times, leaving a remainder of 50.
Put 3 as the next digit of the answer. 
Result so far: 6527.3
If we subtract 270 from 320, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 8:
The number 90 fits into 500 5 times, leaving a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 6527.35
Subtract 450 from 500 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
The number 90 fits into 500 5 times, leaving a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 6527.355
Deduct 450 from 500 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The quotient of the division is 6527.355, and the remainder is 0.005.