We're dividing 74239 by 87 
We want to divide 74239 by 87.

Let's proceed to step 1:
The number 87 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 87

On to step 2:
87 can be fit into 74 0 times, resulting in a remainder of 74.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 74 leaves us with 74.
Grab the next digit (2) from the dividend, add it to 74, then carry on: 742 / 87

Let's proceed to step 3:
87 goes into 742 8 times with a remainder of 46.
Write down 8 as next digit of the result. 
Result so far: 8.0
Deduct 696 from 742 and we're left with 46.
Grab the next digit (3) from the dividend, add it to 46, then carry on: 463 / 87

Advancing to step 4:
When dividing 463 by 87, we get 5 with a remainder of 28.
Record the quotient 5 as the next digit in the result. 
Result so far: 85.0
If we take 435 away from 463, we end up with 28.
Take the next digit (9) from the dividend and append it to 28, then repeat: 289 / 87

Going ahead to step 5:
The number 87 fits into 289 3 times, leaving a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 853.0
The remainder is 28 after subtracting 261 from 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 6:
When dividing 280 by 87, we get 3 with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 853.3
The remainder is 19 after subtracting 261 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 7:
The number 87 fits into 190 2 times, leaving a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 853.32
If we take 174 away from 190, we end up 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.

Step 8:
160 divided by 87 is 1 with a remainder of 73.
The number 1 becomes the next digit in our result. 
Result so far: 853.321
Deduct 87 from 160 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 9:
87 goes into 730 8 times with a remainder of 34.
The number 8 becomes the next digit in our result. 
Result so far: 853.3218
Subtract 696 from 730 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 10:
87 goes into 340 3 times with a remainder of 79.
Write down 3 as next digit of the result. 
Result so far: 853.32183
If we take 261 away from 340, we end up with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

On to step 11:
790 divided by 87 is 9 with a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 853.321839
If we subtract 783 from 790, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 12:
When dividing 70 by 87, we get 0 with a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 853.321839
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 13:
When dividing 700 by 87, we get 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 853.32183908
If we subtract 696 from 700, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 853.32183908 with a remainder of 4e-09.