684277 ÷ 90 
The aim is to understand the frequency of 90 in 684277.

Moving on to step 1:
When dividing 6 by 90, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 90

Step 2:
When dividing 68 by 90, we get 0 with a remainder of 68.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 68 after subtracting 0 from 68.
Take the next digit (4) from the dividend and append it to 68, then repeat: 684 / 90

Let's proceed to step 3:
90 can be fit into 684 7 times, resulting in a remainder of 54.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 630 from 684 leaves us with 54.
Grab the next digit (2) from the dividend, add it to 54, then carry on: 542 / 90

Moving on to step 4:
90 can be fit into 542 6 times, resulting in a remainder of 2.
The next digit of our result is 6. 
Result so far: 76.0
If we subtract 540 from 542, we get 2.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 90

Let's proceed to step 5:
90 can be fit into 27 0 times, resulting in a remainder of 27.
The number 0 becomes the next digit in our result. 
Result so far: 760.0
Subtracting 0 from 27 leaves us with 27.
Bring next digit (7) of the dividend behind the 27 and repeat the process: 277 / 90

Moving on to step 6:
The number 90 fits into 277 3 times, leaving a remainder of 7.
The next digit of our result is 3. 
Result so far: 7603.0
Deduct 270 from 277 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
The number 90 fits into 70 0 times, leaving a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 7603.0
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 8:
90 can be fit into 700 7 times, resulting in a remainder of 70.
Put 7 as the next digit of the answer. 
Result so far: 7603.07
The remainder is 70 after subtracting 630 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 9:
90 can be fit into 700 7 times, resulting in a remainder of 70.
The next digit of our result is 7. 
Result so far: 7603.077
If we subtract 630 from 700, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The quotient of the division is 7603.077, and the remainder is 0.007.