We look at the division of 87821051 by 803 
We want to divide 87821051 by 803.

Advancing to step 1:
When dividing 8 by 803, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 803

Advancing to step 2:
803 goes into 87 0 times with a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Grab the next digit (8) from the dividend, add it to 87, then carry on: 878 / 803

On to step 3:
803 goes into 878 1 times with a remainder of 75.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 803 from 878 and we're left with 75.
Append the next digit (2) from the dividend to 75 and continue with: 752 / 803

Advancing to step 4:
If we divide 752 by 803, we get 0 and a remainder of 752.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 752, we get 752.
Grab the next digit (1) from the dividend, add it to 752, then carry on: 7521 / 803

Let's proceed to step 5:
The number 803 fits into 7521 9 times, leaving a remainder of 294.
Record the quotient 9 as the next digit in the result. 
Result so far: 109.0
Subtract 7227 from 7521 to get 294.
Include the next digit (0) from the dividend after 294, then repeat: 2940 / 803

Going ahead to step 6:
803 goes into 2940 3 times with a remainder of 531.
Put 3 as the next digit of the answer. 
Result so far: 1093.0
The remainder is 531 after subtracting 2409 from 2940.
Grab the next digit (5) from the dividend, add it to 531, then carry on: 5315 / 803

Let's proceed to step 7:
803 can be fit into 5315 6 times, resulting in a remainder of 497.
Write down 6 as next digit of the result. 
Result so far: 10936.0
Deduct 4818 from 5315 and we're left with 497.
Grab the next digit (1) from the dividend, add it to 497, then carry on: 4971 / 803

Moving on to step 8:
The number 803 fits into 4971 6 times, leaving a remainder of 153.
The next digit of our result is 6. 
Result so far: 109366.0
Subtract 4818 from 4971 to get 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Advancing to step 9:
The number 803 fits into 1530 1 times, leaving a remainder of 727.
Write down 1 as next digit of the result. 
Result so far: 109366.1
Subtract 803 from 1530 to get 727.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7270, and continue the process.

Step 10:
If we divide 7270 by 803, we get 9 and a remainder of 43.
Record the quotient 9 as the next digit in the result. 
Result so far: 109366.19
The remainder is 43 after subtracting 7227 from 7270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 11:
803 goes into 430 0 times with a remainder of 430.
Put 0 as the next digit of the answer. 
Result so far: 109366.19
If we take 0 away from 430, we end up with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Going ahead to step 12:
4300 divided by 803 is 5 with a remainder of 285.
Write down 5 as next digit of the result. 
Result so far: 109366.1905
If we take 4015 away from 4300, we end up with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

On to step 13:
2850 divided by 803 is 3 with a remainder of 441.
Use 3 as the next digit of our solution. 
Result so far: 109366.19053
Deduct 2409 from 2850 and we're left with 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Let's proceed to step 14:
4410 divided by 803 is 5 with a remainder of 395.
Use 5 as the next digit of our solution. 
Result so far: 109366.190535
Subtract 4015 from 4410 to get 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Going ahead to step 15:
3950 divided by 803 is 4 with a remainder of 738.
Write down 4 as next digit of the result. 
Result so far: 109366.1905354
Subtract 3212 from 3950 to get 738.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7380, and continue the process.

Moving on to step 16:
803 goes into 7380 9 times with a remainder of 153.
The number 9 becomes the next digit in our result. 
Result so far: 109366.19053549
If we take 7227 away from 7380, we end up with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

The final result is 109366.19053549 with a remainder of 1.53e-07.