90069100 ÷ 459 
The aim is to understand the frequency of 459 in 90069100.

Let's proceed to step 1:
The number 459 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 459

Let's proceed to step 2:
The number 459 fits into 90 0 times, leaving a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Take the next digit (0) from the dividend and append it to 90, then repeat: 900 / 459

Advancing to step 3:
When dividing 900 by 459, we get 1 with a remainder of 441.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 459 away from 900, we end up with 441.
Take the next digit (6) from the dividend and append it to 441, then repeat: 4416 / 459

Advancing to step 4:
4416 divided by 459 is 9 with a remainder of 285.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtract 4131 from 4416 to get 285.
Append the next digit (9) from the dividend to 285 and continue with: 2859 / 459

Moving on to step 5:
When dividing 2859 by 459, we get 6 with a remainder of 105.
Put 6 as the next digit of the answer. 
Result so far: 196.0
Subtract 2754 from 2859 to get 105.
Fetch the next digit (1) from the dividend, attach it to 105 and continue: 1051 / 459

Moving on to step 6:
1051 divided by 459 is 2 with a remainder of 133.
Record the quotient 2 as the next digit in the result. 
Result so far: 1962.0
If we take 918 away from 1051, we end up with 133.
Bring next digit (0) of the dividend behind the 133 and repeat the process: 1330 / 459

Advancing to step 7:
459 can be fit into 1330 2 times, resulting in a remainder of 412.
Write down 2 as next digit of the result. 
Result so far: 19622.0
Subtract 918 from 1330 to get 412.
Fetch the next digit (0) from the dividend, attach it to 412 and continue: 4120 / 459

Advancing to step 8:
459 goes into 4120 8 times with a remainder of 448.
Use 8 as the next digit of our solution. 
Result so far: 196228.0
Subtract 3672 from 4120 to get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Step 9:
459 can be fit into 4480 9 times, resulting in a remainder of 349.
Put 9 as the next digit of the answer. 
Result so far: 196228.9
If we take 4131 away from 4480, we end up with 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Going ahead to step 10:
459 can be fit into 3490 7 times, resulting in a remainder of 277.
The number 7 becomes the next digit in our result. 
Result so far: 196228.97
If we subtract 3213 from 3490, we get 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Moving on to step 11:
The number 459 fits into 2770 6 times, leaving a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 196228.976
Deduct 2754 from 2770 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 12:
The number 459 fits into 160 0 times, leaving a remainder of 160.
Put 0 as the next digit of the answer. 
Result so far: 196228.976
If we take 0 away from 160, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 13:
The number 459 fits into 1600 3 times, leaving a remainder of 223.
Write down 3 as next digit of the result. 
Result so far: 196228.97603
Subtract 1377 from 1600 to get 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Let's proceed to step 14:
If we divide 2230 by 459, we get 4 and a remainder of 394.
The next digit of our result is 4. 
Result so far: 196228.976034
The remainder is 394 after subtracting 1836 from 2230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Moving on to step 15:
459 can be fit into 3940 8 times, resulting in a remainder of 268.
The next digit of our result is 8. 
Result so far: 196228.9760348
If we subtract 3672 from 3940, we get 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Going ahead to step 16:
If we divide 2680 by 459, we get 5 and a remainder of 385.
Write down 5 as next digit of the result. 
Result so far: 196228.97603485
If we subtract 2295 from 2680, we get 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

The final outcome is 196228.97603485, with a leftover of 3.85e-07.