821390 ÷ 87 
We want to figure out the number of times 821390 can be divided by 87.

Advancing to step 1:
The number 87 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (2) from the dividend, add it to 8, then carry on: 82 / 87

Moving on to step 2:
When dividing 82 by 87, we get 0 with a remainder of 82.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 82 to get 82.
Fetch the next digit (1) from the dividend, attach it to 82 and continue: 821 / 87

On to step 3:
If we divide 821 by 87, we get 9 and a remainder of 38.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 783 away from 821, we end up with 38.
Grab the next digit (3) from the dividend, add it to 38, then carry on: 383 / 87

Let's proceed to step 4:
If we divide 383 by 87, we get 4 and a remainder of 35.
Use 4 as the next digit of our solution. 
Result so far: 94.0
Deduct 348 from 383 and we're left with 35.
Bring next digit (9) of the dividend behind the 35 and repeat the process: 359 / 87

Let's proceed to step 5:
87 goes into 359 4 times with a remainder of 11.
Put 4 as the next digit of the answer. 
Result so far: 944.0
If we subtract 348 from 359, we get 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 87

Let's proceed to step 6:
The number 87 fits into 110 1 times, leaving a remainder of 23.
Write down 1 as next digit of the result. 
Result so far: 9441.0
If we take 87 away from 110, we end up 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 7:
The number 87 fits into 230 2 times, leaving a remainder of 56.
Record the quotient 2 as the next digit in the result. 
Result so far: 9441.2
Deduct 174 from 230 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 8:
87 can be fit into 560 6 times, resulting in a remainder of 38.
Write down 6 as next digit of the result. 
Result so far: 9441.26
If we take 522 away from 560, we end up 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.

Advancing to step 9:
The number 87 fits into 380 4 times, leaving a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 9441.264
If we subtract 348 from 380, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 10:
When dividing 320 by 87, we get 3 with a remainder of 59.
The next digit of our result is 3. 
Result so far: 9441.2643
If we subtract 261 from 320, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Step 11:
The number 87 fits into 590 6 times, leaving a remainder of 68.
Write down 6 as next digit of the result. 
Result so far: 9441.26436
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.

Step 12:
When dividing 680 by 87, we get 7 with a remainder of 71.
The number 7 becomes the next digit in our result. 
Result so far: 9441.264367
If we subtract 609 from 680, we get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 13:
The number 87 fits into 710 8 times, leaving a remainder of 14.
Write down 8 as next digit of the result. 
Result so far: 9441.2643678
Deduct 696 from 710 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 14:
87 goes into 140 1 times with a remainder of 53.
Use 1 as the next digit of our solution. 
Result so far: 9441.26436781
Subtracting 87 from 140 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

In conclusion, the division gives 9441.26436781 with a balance of 5.3e-08.