621270 divided by 87 
Our goal is to divide 621270 by 87.

On to step 1:
87 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 87

Let's proceed to step 2:
62 divided by 87 is 0 with a remainder of 62.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 62 leaves us with 62.
Append the next digit (1) from the dividend to 62 and continue with: 621 / 87

Advancing to step 3:
621 divided by 87 is 7 with a remainder of 12.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 609 from 621 to get 12.
Grab the next digit (2) from the dividend, add it to 12, then carry on: 122 / 87

Going ahead to step 4:
122 divided by 87 is 1 with a remainder of 35.
Write down 1 as next digit of the result. 
Result so far: 71.0
Deduct 87 from 122 and we're left with 35.
Include the next digit (7) from the dividend after 35, then repeat: 357 / 87

Let's proceed to step 5:
87 can be fit into 357 4 times, resulting in a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 714.0
Subtracting 348 from 357 leaves us with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 87

Going ahead to step 6:
When dividing 90 by 87, we get 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 7141.0
Deduct 87 from 90 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
30 divided by 87 is 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 7141.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
The number 87 fits into 300 3 times, leaving a remainder of 39.
Write down 3 as next digit of the result. 
Result so far: 7141.03
Subtract 261 from 300 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 9:
If we divide 390 by 87, we get 4 and a remainder of 42.
Record the quotient 4 as the next digit in the result. 
Result so far: 7141.034
Deduct 348 from 390 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 10:
When dividing 420 by 87, we get 4 with a remainder of 72.
Write down 4 as next digit of the result. 
Result so far: 7141.0344
If we subtract 348 from 420, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

After the division, we end up with 7141.0344 and a remainder of 0.00072.