455805 ÷ 87 
The aim is to understand the frequency of 87 in 455805.

Moving on to step 1:
87 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 87

Moving on to step 2:
87 can be fit into 45 0 times, resulting in a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 45 and we're left with 45.
Grab the next digit (5) from the dividend, add it to 45, then carry on: 455 / 87

Let's proceed to step 3:
87 can be fit into 455 5 times, resulting in a remainder of 20.
The next digit of our result is 5. 
Result so far: 5.0
If we take 435 away from 455, we end up with 20.
Take the next digit (8) from the dividend and append it to 20, then repeat: 208 / 87

Going ahead to step 4:
87 can be fit into 208 2 times, resulting in a remainder of 34.
Write down 2 as next digit of the result. 
Result so far: 52.0
Subtract 174 from 208 to get 34.
Append the next digit (0) from the dividend to 34 and continue with: 340 / 87

Going ahead to step 5:
87 goes into 340 3 times with a remainder of 79.
Put 3 as the next digit of the answer. 
Result so far: 523.0
Subtract 261 from 340 to get 79.
Append the next digit (5) from the dividend to 79 and continue with: 795 / 87

Advancing to step 6:
When dividing 795 by 87, we get 9 with a remainder of 12.
Write down 9 as next digit of the result. 
Result so far: 5239.0
The remainder is 12 after subtracting 783 from 795.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 7:
87 goes into 120 1 times with a remainder of 33.
Record the quotient 1 as the next digit in the result. 
Result so far: 5239.1
Deduct 87 from 120 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 8:
When dividing 330 by 87, we get 3 with a remainder of 69.
Put 3 as the next digit of the answer. 
Result so far: 5239.13
Subtracting 261 from 330 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 9:
If we divide 690 by 87, we get 7 and a remainder of 81.
Use 7 as the next digit of our solution. 
Result so far: 5239.137
Subtracting 609 from 690 leaves us with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

On to step 10:
87 goes into 810 9 times with a remainder of 27.
The number 9 becomes the next digit in our result. 
Result so far: 5239.1379
If we subtract 783 from 810, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 11:
270 divided by 87 is 3 with a remainder of 9.
Put 3 as the next digit of the answer. 
Result so far: 5239.13793
The remainder is 9 after subtracting 261 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 12:
87 goes into 90 1 times with a remainder of 3.
The next digit of our result is 1. 
Result so far: 5239.137931
If we take 87 away from 90, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 13:
87 goes into 30 0 times with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 5239.137931
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 14:
300 divided by 87 is 3 with a remainder of 39.
Write down 3 as next digit of the result. 
Result so far: 5239.13793103
Deduct 261 from 300 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final outcome is 5239.13793103, with a leftover of 3.9e-08.