631421 ÷ 87 
We want to divide 631421 by 87.

Step 1:
6 divided by 87 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 87

Let's proceed to step 2:
If we divide 63 by 87, we get 0 and a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Grab the next digit (1) from the dividend, add it to 63, then carry on: 631 / 87

Step 3:
The number 87 fits into 631 7 times, leaving a remainder of 22.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 609 from 631 to get 22.
Fetch the next digit (4) from the dividend, attach it to 22 and continue: 224 / 87

Going ahead to step 4:
87 goes into 224 2 times with a remainder of 50.
The next digit of our result is 2. 
Result so far: 72.0
Deduct 174 from 224 and we're left with 50.
Include the next digit (2) from the dividend after 50, then repeat: 502 / 87

Going ahead to step 5:
87 goes into 502 5 times with a remainder of 67.
Use 5 as the next digit of our solution. 
Result so far: 725.0
Deduct 435 from 502 and we're left with 67.
Bring next digit (1) of the dividend behind the 67 and repeat the process: 671 / 87

Advancing to step 6:
671 divided by 87 is 7 with a remainder of 62.
Put 7 as the next digit of the answer. 
Result so far: 7257.0
If we take 609 away from 671, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 7:
The number 87 fits into 620 7 times, leaving a remainder of 11.
The next digit of our result is 7. 
Result so far: 7257.7
The remainder is 11 after subtracting 609 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 8:
When dividing 110 by 87, we get 1 with a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 7257.71
Subtracting 87 from 110 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 9:
87 can be fit into 230 2 times, resulting in a remainder of 56.
The number 2 becomes the next digit in our result. 
Result so far: 7257.712
Subtract 174 from 230 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 10:
87 goes into 560 6 times with a remainder of 38.
Write down 6 as next digit of the result. 
Result so far: 7257.7126
Subtracting 522 from 560 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 11:
380 divided by 87 is 4 with a remainder of 32.
Record the quotient 4 as the next digit in the result. 
Result so far: 7257.71264
Subtracting 348 from 380 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 12:
320 divided by 87 is 3 with a remainder of 59.
The number 3 becomes the next digit in our result. 
Result so far: 7257.712643
Deduct 261 from 320 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 13:
87 goes into 590 6 times with a remainder of 68.
Write down 6 as next digit of the result. 
Result so far: 7257.7126436
If we take 522 away from 590, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 14:
If we divide 680 by 87, we get 7 and a remainder of 71.
The number 7 becomes the next digit in our result. 
Result so far: 7257.71264367
The remainder is 71 after subtracting 609 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

After the division, we end up with 7257.71264367 and a remainder of 7.1e-08.