315131 divided by 87 
Our goal is to divide 315131 by 87.

On to step 1:
If we divide 3 by 87, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 87

Going ahead to step 2:
If we divide 31 by 87, we get 0 and a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Grab the next digit (5) from the dividend, add it to 31, then carry on: 315 / 87

Moving on to step 3:
When dividing 315 by 87, we get 3 with a remainder of 54.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 54 after subtracting 261 from 315.
Take the next digit (1) from the dividend and append it to 54, then repeat: 541 / 87

Moving on to step 4:
The number 87 fits into 541 6 times, leaving a remainder of 19.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
Subtracting 522 from 541 leaves us with 19.
Include the next digit (3) from the dividend after 19, then repeat: 193 / 87

Let's proceed to step 5:
If we divide 193 by 87, we get 2 and a remainder of 19.
Use 2 as the next digit of our solution. 
Result so far: 362.0
If we subtract 174 from 193, we get 19.
Append the next digit (1) from the dividend to 19 and continue with: 191 / 87

Going ahead to step 6:
191 divided by 87 is 2 with a remainder of 17.
The next digit of our result is 2. 
Result so far: 3622.0
If we subtract 174 from 191, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 7:
When dividing 170 by 87, we get 1 with a remainder of 83.
Record the quotient 1 as the next digit in the result. 
Result so far: 3622.1
Subtract 87 from 170 to get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Step 8:
When dividing 830 by 87, we get 9 with a remainder of 47.
Use 9 as the next digit of our solution. 
Result so far: 3622.19
Deduct 783 from 830 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 9:
87 can be fit into 470 5 times, resulting in a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 3622.195
Subtract 435 from 470 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 10:
When dividing 350 by 87, we get 4 with a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 3622.1954
Subtract 348 from 350 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 11:
87 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 3622.1954
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 12:
If we divide 200 by 87, we get 2 and a remainder of 26.
The number 2 becomes the next digit in our result. 
Result so far: 3622.195402
Subtracting 174 from 200 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 13:
87 goes into 260 2 times with a remainder of 86.
Write down 2 as next digit of the result. 
Result so far: 3622.1954022
Deduct 174 from 260 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Our division results in 3622.1954022 with a remaining 8.6e-07.