We're dividing 90459 by 87 
We want to figure out the number of times 90459 can be divided by 87.

On to step 1:
9 divided by 87 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 87

Going ahead to step 2:
87 goes into 90 1 times with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 87 from 90 and we're left with 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 87

Going ahead to step 3:
34 divided by 87 is 0 with a remainder of 34.
The next digit of our result is 0. 
Result so far: 10.0
The remainder is 34 after subtracting 0 from 34.
Take the next digit (5) from the dividend and append it to 34, then repeat: 345 / 87

On to step 4:
87 can be fit into 345 3 times, resulting in a remainder of 84.
Record the quotient 3 as the next digit in the result. 
Result so far: 103.0
The remainder is 84 after subtracting 261 from 345.
Grab the next digit (9) from the dividend, add it to 84, then carry on: 849 / 87

Let's proceed to step 5:
87 goes into 849 9 times with a remainder of 66.
The next digit of our result is 9. 
Result so far: 1039.0
Subtracting 783 from 849 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 6:
When dividing 660 by 87, we get 7 with a remainder of 51.
Record the quotient 7 as the next digit in the result. 
Result so far: 1039.7
Subtracting 609 from 660 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 7:
87 goes into 510 5 times with a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 1039.75
Subtract 435 from 510 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 8:
The number 87 fits into 750 8 times, leaving a remainder of 54.
The next digit of our result is 8. 
Result so far: 1039.758
Deduct 696 from 750 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 9:
If we divide 540 by 87, we get 6 and a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 1039.7586
Deduct 522 from 540 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 10:
If we divide 180 by 87, we get 2 and a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 1039.75862
If we subtract 174 from 180, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 11:
87 goes into 60 0 times with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 1039.75862
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 12:
The number 87 fits into 600 6 times, leaving a remainder of 78.
Write down 6 as next digit of the result. 
Result so far: 1039.7586206
Deduct 522 from 600 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 13:
780 divided by 87 is 8 with a remainder of 84.
Put 8 as the next digit of the answer. 
Result so far: 1039.75862068
Subtract 696 from 780 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Our division results in 1039.75862068 with a remaining 8.4e-08.