1604611 divided by 455 
The aim is to understand the frequency of 455 in 1604611.

Let's proceed to step 1:
The number 455 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 455

Let's proceed to step 2:
16 divided by 455 is 0 with a remainder of 16.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 16 after subtracting 0 from 16.
Take the next digit (0) from the dividend and append it to 16, then repeat: 160 / 455

On to step 3:
455 goes into 160 0 times with a remainder of 160.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 160 and we're left with 160.
Fetch the next digit (4) from the dividend, attach it to 160 and continue: 1604 / 455

On to step 4:
If we divide 1604 by 455, we get 3 and a remainder of 239.
The next digit of our result is 3. 
Result so far: 3.0
If we take 1365 away from 1604, we end up with 239.
Take the next digit (6) from the dividend and append it to 239, then repeat: 2396 / 455

Moving on to step 5:
If we divide 2396 by 455, we get 5 and a remainder of 121.
Record the quotient 5 as the next digit in the result. 
Result so far: 35.0
The remainder is 121 after subtracting 2275 from 2396.
Grab the next digit (1) from the dividend, add it to 121, then carry on: 1211 / 455

Let's proceed to step 6:
455 can be fit into 1211 2 times, resulting in a remainder of 301.
Record the quotient 2 as the next digit in the result. 
Result so far: 352.0
Subtract 910 from 1211 to get 301.
Bring next digit (1) of the dividend behind the 301 and repeat the process: 3011 / 455

Moving on to step 7:
455 goes into 3011 6 times with a remainder of 281.
Put 6 as the next digit of the answer. 
Result so far: 3526.0
If we subtract 2730 from 3011, we get 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Advancing to step 8:
The number 455 fits into 2810 6 times, leaving a remainder of 80.
The number 6 becomes the next digit in our result. 
Result so far: 3526.6
The remainder is 80 after subtracting 2730 from 2810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 9:
The number 455 fits into 800 1 times, leaving a remainder of 345.
Put 1 as the next digit of the answer. 
Result so far: 3526.61
Subtracting 455 from 800 leaves us with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Advancing to step 10:
3450 divided by 455 is 7 with a remainder of 265.
The next digit of our result is 7. 
Result so far: 3526.617
The remainder is 265 after subtracting 3185 from 3450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Advancing to step 11:
455 goes into 2650 5 times with a remainder of 375.
Use 5 as the next digit of our solution. 
Result so far: 3526.6175
Subtract 2275 from 2650 to get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Step 12:
When dividing 3750 by 455, we get 8 with a remainder of 110.
Use 8 as the next digit of our solution. 
Result so far: 3526.61758
If we subtract 3640 from 3750, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Let's proceed to step 13:
1100 divided by 455 is 2 with a remainder of 190.
The next digit of our result is 2. 
Result so far: 3526.617582
The remainder is 190 after subtracting 910 from 1100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Going ahead to step 14:
The number 455 fits into 1900 4 times, leaving a remainder of 80.
Write down 4 as next digit of the result. 
Result so far: 3526.6175824
Deduct 1820 from 1900 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 15:
800 divided by 455 is 1 with a remainder of 345.
Use 1 as the next digit of our solution. 
Result so far: 3526.61758241
Subtracting 455 from 800 leaves us with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

The final result is 3526.61758241 with a remainder of 3.45e-07.