We look at the division of 87987457 by 423 
We want to divide 87987457 by 423.

Going ahead to step 1:
423 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 423

On to step 2:
When dividing 87 by 423, we get 0 with a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Take the next digit (9) from the dividend and append it to 87, then repeat: 879 / 423

Advancing to step 3:
When dividing 879 by 423, we get 2 with a remainder of 33.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 33 after subtracting 846 from 879.
Take the next digit (8) from the dividend and append it to 33, then repeat: 338 / 423

Moving on to step 4:
The number 423 fits into 338 0 times, leaving a remainder of 338.
Put 0 as the next digit of the answer. 
Result so far: 20.0
If we take 0 away from 338, we end up with 338.
Bring next digit (7) of the dividend behind the 338 and repeat the process: 3387 / 423

Step 5:
When dividing 3387 by 423, we get 8 with a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 208.0
Subtract 3384 from 3387 to get 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 423

On to step 6:
If we divide 34 by 423, we get 0 and a remainder of 34.
Write down 0 as next digit of the result. 
Result so far: 2080.0
Deduct 0 from 34 and we're left with 34.
Bring next digit (5) of the dividend behind the 34 and repeat the process: 345 / 423

Going ahead to step 7:
When dividing 345 by 423, we get 0 with a remainder of 345.
Record the quotient 0 as the next digit in the result. 
Result so far: 20800.0
Subtracting 0 from 345 leaves us with 345.
Bring next digit (7) of the dividend behind the 345 and repeat the process: 3457 / 423

Step 8:
423 goes into 3457 8 times with a remainder of 73.
The next digit of our result is 8. 
Result so far: 208008.0
If we subtract 3384 from 3457, we get 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:
The number 423 fits into 730 1 times, leaving a remainder of 307.
The number 1 becomes the next digit in our result. 
Result so far: 208008.1
Subtracting 423 from 730 leaves us with 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3070, and continue the process.

Step 10:
If we divide 3070 by 423, we get 7 and a remainder of 109.
The next digit of our result is 7. 
Result so far: 208008.17
If we take 2961 away from 3070, we end up with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Going ahead to step 11:
423 goes into 1090 2 times with a remainder of 244.
Record the quotient 2 as the next digit in the result. 
Result so far: 208008.172
The remainder is 244 after subtracting 846 from 1090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Advancing to step 12:
2440 divided by 423 is 5 with a remainder of 325.
Use 5 as the next digit of our solution. 
Result so far: 208008.1725
Deduct 2115 from 2440 and we're left with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Let's proceed to step 13:
If we divide 3250 by 423, we get 7 and a remainder of 289.
The number 7 becomes the next digit in our result. 
Result so far: 208008.17257
Deduct 2961 from 3250 and we're left with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Step 14:
423 can be fit into 2890 6 times, resulting in a remainder of 352.
The number 6 becomes the next digit in our result. 
Result so far: 208008.172576
Deduct 2538 from 2890 and we're left with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Advancing to step 15:
The number 423 fits into 3520 8 times, leaving a remainder of 136.
Use 8 as the next digit of our solution. 
Result so far: 208008.1725768
Subtract 3384 from 3520 to get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 16:
The number 423 fits into 1360 3 times, leaving a remainder of 91.
Write down 3 as next digit of the result. 
Result so far: 208008.17257683
Subtract 1269 from 1360 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Our division results in 208008.17257683 with a remaining 9.1e-08.