We're dividing 901448 by 999 
The aim is to understand the frequency of 999 in 901448.

Let's proceed to step 1:
999 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 999

Let's proceed to step 2:
If we divide 90 by 999, we get 0 and a remainder of 90.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 90 to get 90.
Fetch the next digit (1) from the dividend, attach it to 90 and continue: 901 / 999

Moving on to step 3:
999 can be fit into 901 0 times, resulting in a remainder of 901.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 901 leaves us with 901.
Bring next digit (4) of the dividend behind the 901 and repeat the process: 9014 / 999

Moving on to step 4:
999 goes into 9014 9 times with a remainder of 23.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we subtract 8991 from 9014, we get 23.
Include the next digit (4) from the dividend after 23, then repeat: 234 / 999

Let's proceed to step 5:
When dividing 234 by 999, we get 0 with a remainder of 234.
The next digit of our result is 0. 
Result so far: 90.0
The remainder is 234 after subtracting 0 from 234.
Bring next digit (8) of the dividend behind the 234 and repeat the process: 2348 / 999

Moving on to step 6:
When dividing 2348 by 999, we get 2 with a remainder of 350.
The next digit of our result is 2. 
Result so far: 902.0
Subtracting 1998 from 2348 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Moving on to step 7:
The number 999 fits into 3500 3 times, leaving a remainder of 503.
Put 3 as the next digit of the answer. 
Result so far: 902.3
The remainder is 503 after subtracting 2997 from 3500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Advancing to step 8:
999 can be fit into 5030 5 times, resulting in a remainder of 35.
The next digit of our result is 5. 
Result so far: 902.35
Subtract 4995 from 5030 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 9:
350 divided by 999 is 0 with a remainder of 350.
Record the quotient 0 as the next digit in the result. 
Result so far: 902.35
Subtracting 0 from 350 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 10:
When dividing 3500 by 999, we get 3 with a remainder of 503.
Record the quotient 3 as the next digit in the result. 
Result so far: 902.3503
Deduct 2997 from 3500 and we're left with 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Moving on to step 11:
999 goes into 5030 5 times with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 902.35035
If we take 4995 away from 5030, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 12:
999 goes into 350 0 times with a remainder of 350.
The number 0 becomes the next digit in our result. 
Result so far: 902.35035
The remainder is 350 after subtracting 0 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Step 13:
999 can be fit into 3500 3 times, resulting in a remainder of 503.
Use 3 as the next digit of our solution. 
Result so far: 902.3503503
If we subtract 2997 from 3500, we get 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Going ahead to step 14:
When dividing 5030 by 999, we get 5 with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 902.35035035
Deduct 4995 from 5030 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The quotient of the division is 902.35035035, and the remainder is 3.5e-08.