894151 ÷ 90 
The aim is to understand the frequency of 90 in 894151.

Let's proceed to step 1:
90 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 90

Moving on to step 2:
89 divided by 90 is 0 with a remainder of 89.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 89 to get 89.
Fetch the next digit (4) from the dividend, attach it to 89 and continue: 894 / 90

On to step 3:
90 goes into 894 9 times with a remainder of 84.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 810 from 894 leaves us with 84.
Take the next digit (1) from the dividend and append it to 84, then repeat: 841 / 90

Moving on to step 4:
When dividing 841 by 90, we get 9 with a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 99.0
Subtracting 810 from 841 leaves us with 31.
Grab the next digit (5) from the dividend, add it to 31, then carry on: 315 / 90

Going ahead to step 5:
315 divided by 90 is 3 with a remainder of 45.
Write down 3 as next digit of the result. 
Result so far: 993.0
Deduct 270 from 315 and we're left with 45.
Fetch the next digit (1) from the dividend, attach it to 45 and continue: 451 / 90

Let's proceed to step 6:
90 goes into 451 5 times with a remainder of 1.
The next digit of our result is 5. 
Result so far: 9935.0
The remainder is 1 after subtracting 450 from 451.
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 7:
When dividing 10 by 90, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 9935.0
Deduct 0 from 10 and we're left 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.

Let's proceed to step 8:
The number 90 fits into 100 1 times, leaving a remainder of 10.
The next digit of our result is 1. 
Result so far: 9935.01
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 9:
The number 90 fits into 100 1 times, leaving a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 9935.011
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 quotient of the division is 9935.011, and the remainder is 0.001.