71869783 ÷ 821 
We're looking to find how many times 821 goes into 71869783.

Step 1:
When dividing 7 by 821, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 821

Moving on to step 2:
If we divide 71 by 821, we get 0 and a remainder of 71.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 71, we end up with 71.
Take the next digit (8) from the dividend and append it to 71, then repeat: 718 / 821

Let's proceed to step 3:
821 can be fit into 718 0 times, resulting in a remainder of 718.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 718, we get 718.
Include the next digit (6) from the dividend after 718, then repeat: 7186 / 821

Let's proceed to step 4:
The number 821 fits into 7186 8 times, leaving a remainder of 618.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 6568 from 7186 leaves us with 618.
Include the next digit (9) from the dividend after 618, then repeat: 6189 / 821

Going ahead to step 5:
821 can be fit into 6189 7 times, resulting in a remainder of 442.
Use 7 as the next digit of our solution. 
Result so far: 87.0
If we take 5747 away from 6189, we end up with 442.
Bring next digit (7) of the dividend behind the 442 and repeat the process: 4427 / 821

Step 6:
If we divide 4427 by 821, we get 5 and a remainder of 322.
Use 5 as the next digit of our solution. 
Result so far: 875.0
Deduct 4105 from 4427 and we're left with 322.
Include the next digit (8) from the dividend after 322, then repeat: 3228 / 821

Step 7:
When dividing 3228 by 821, we get 3 with a remainder of 765.
The next digit of our result is 3. 
Result so far: 8753.0
If we subtract 2463 from 3228, we get 765.
Grab the next digit (3) from the dividend, add it to 765, then carry on: 7653 / 821

Going ahead to step 8:
7653 divided by 821 is 9 with a remainder of 264.
The number 9 becomes the next digit in our result. 
Result so far: 87539.0
The remainder is 264 after subtracting 7389 from 7653.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Moving on to step 9:
2640 divided by 821 is 3 with a remainder of 177.
Use 3 as the next digit of our solution. 
Result so far: 87539.3
Deduct 2463 from 2640 and we're left with 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Moving on to step 10:
If we divide 1770 by 821, we get 2 and a remainder of 128.
Write down 2 as next digit of the result. 
Result so far: 87539.32
Subtracting 1642 from 1770 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 11:
821 can be fit into 1280 1 times, resulting in a remainder of 459.
The number 1 becomes the next digit in our result. 
Result so far: 87539.321
Subtracting 821 from 1280 leaves us with 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4590, and continue the process.

Going ahead to step 12:
821 can be fit into 4590 5 times, resulting in a remainder of 485.
Write down 5 as next digit of the result. 
Result so far: 87539.3215
Subtracting 4105 from 4590 leaves us with 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

Moving on to step 13:
When dividing 4850 by 821, we get 5 with a remainder of 745.
The next digit of our result is 5. 
Result so far: 87539.32155
The remainder is 745 after subtracting 4105 from 4850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7450, and continue the process.

The final result is 87539.32155 with a remainder of 0.000745.