We're dividing 86091061 by 456 
The aim is to understand the frequency of 456 in 86091061.

Let's proceed to step 1:
If we divide 8 by 456, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 456

Going ahead to step 2:
456 can be fit into 86 0 times, resulting in a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Grab the next digit (0) from the dividend, add it to 86, then carry on: 860 / 456

Going ahead to step 3:
456 goes into 860 1 times with a remainder of 404.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 404 after subtracting 456 from 860.
Fetch the next digit (9) from the dividend, attach it to 404 and continue: 4049 / 456

Moving on to step 4:
456 can be fit into 4049 8 times, resulting in a remainder of 401.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 3648 from 4049 leaves us with 401.
Take the next digit (1) from the dividend and append it to 401, then repeat: 4011 / 456

Advancing to step 5:
456 can be fit into 4011 8 times, resulting in a remainder of 363.
The next digit of our result is 8. 
Result so far: 188.0
Subtracting 3648 from 4011 leaves us with 363.
Include the next digit (0) from the dividend after 363, then repeat: 3630 / 456

Going ahead to step 6:
456 goes into 3630 7 times with a remainder of 438.
The next digit of our result is 7. 
Result so far: 1887.0
Deduct 3192 from 3630 and we're left with 438.
Grab the next digit (6) from the dividend, add it to 438, then carry on: 4386 / 456

On to step 7:
456 can be fit into 4386 9 times, resulting in a remainder of 282.
Use 9 as the next digit of our solution. 
Result so far: 18879.0
If we take 4104 away from 4386, we end up with 282.
Append the next digit (1) from the dividend to 282 and continue with: 2821 / 456

Moving on to step 8:
The number 456 fits into 2821 6 times, leaving a remainder of 85.
The next digit of our result is 6. 
Result so far: 188796.0
If we subtract 2736 from 2821, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

On to step 9:
456 can be fit into 850 1 times, resulting in a remainder of 394.
The next digit of our result is 1. 
Result so far: 188796.1
If we take 456 away from 850, we end up with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

On to step 10:
3940 divided by 456 is 8 with a remainder of 292.
Use 8 as the next digit of our solution. 
Result so far: 188796.18
Subtracting 3648 from 3940 leaves us with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Step 11:
The number 456 fits into 2920 6 times, leaving a remainder of 184.
The next digit of our result is 6. 
Result so far: 188796.186
The remainder is 184 after subtracting 2736 from 2920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 12:
1840 divided by 456 is 4 with a remainder of 16.
The next digit of our result is 4. 
Result so far: 188796.1864
Subtract 1824 from 1840 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 13:
456 goes into 160 0 times with a remainder of 160.
Put 0 as the next digit of the answer. 
Result so far: 188796.1864
Subtract 0 from 160 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 14:
456 goes into 1600 3 times with a remainder of 232.
Record the quotient 3 as the next digit in the result. 
Result so far: 188796.186403
The remainder is 232 after subtracting 1368 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Advancing to step 15:
If we divide 2320 by 456, we get 5 and a remainder of 40.
The next digit of our result is 5. 
Result so far: 188796.1864035
Subtract 2280 from 2320 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 16:
When dividing 400 by 456, we get 0 with a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 188796.1864035
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final outcome is 188796.1864035, with a leftover of 4e-07.