31358759 ÷ 821 
We want to divide 31358759 by 821.

Moving on to step 1:
The number 821 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 821

Advancing to step 2:
When dividing 31 by 821, we get 0 with a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 31 to get 31.
Append the next digit (3) from the dividend to 31 and continue with: 313 / 821

Going ahead to step 3:
821 goes into 313 0 times with a remainder of 313.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 313, we end up with 313.
Bring next digit (5) of the dividend behind the 313 and repeat the process: 3135 / 821

On to step 4:
When dividing 3135 by 821, we get 3 with a remainder of 672.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 672 after subtracting 2463 from 3135.
Take the next digit (8) from the dividend and append it to 672, then repeat: 6728 / 821

Let's proceed to step 5:
821 can be fit into 6728 8 times, resulting in a remainder of 160.
The next digit of our result is 8. 
Result so far: 38.0
Subtracting 6568 from 6728 leaves us with 160.
Bring next digit (7) of the dividend behind the 160 and repeat the process: 1607 / 821

Going ahead to step 6:
1607 divided by 821 is 1 with a remainder of 786.
Put 1 as the next digit of the answer. 
Result so far: 381.0
The remainder is 786 after subtracting 821 from 1607.
Include the next digit (5) from the dividend after 786, then repeat: 7865 / 821

Step 7:
If we divide 7865 by 821, we get 9 and a remainder of 476.
Put 9 as the next digit of the answer. 
Result so far: 3819.0
Deduct 7389 from 7865 and we're left with 476.
Grab the next digit (9) from the dividend, add it to 476, then carry on: 4769 / 821

Advancing to step 8:
When dividing 4769 by 821, we get 5 with a remainder of 664.
The number 5 becomes the next digit in our result. 
Result so far: 38195.0
Subtracting 4105 from 4769 leaves us with 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

Let's proceed to step 9:
When dividing 6640 by 821, we get 8 with a remainder of 72.
The number 8 becomes the next digit in our result. 
Result so far: 38195.8
Subtract 6568 from 6640 to 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.

Step 10:
The number 821 fits into 720 0 times, leaving a remainder of 720.
Record the quotient 0 as the next digit in the result. 
Result so far: 38195.8
Subtract 0 from 720 to get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Moving on to step 11:
If we divide 7200 by 821, we get 8 and a remainder of 632.
Put 8 as the next digit of the answer. 
Result so far: 38195.808
If we subtract 6568 from 7200, we get 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

Moving on to step 12:
The number 821 fits into 6320 7 times, leaving a remainder of 573.
Record the quotient 7 as the next digit in the result. 
Result so far: 38195.8087
The remainder is 573 after subtracting 5747 from 6320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5730, and continue the process.

On to step 13:
If we divide 5730 by 821, we get 6 and a remainder of 804.
Put 6 as the next digit of the answer. 
Result so far: 38195.80876
The remainder is 804 after subtracting 4926 from 5730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8040, and continue the process.

Let's proceed to step 14:
821 can be fit into 8040 9 times, resulting in a remainder of 651.
The number 9 becomes the next digit in our result. 
Result so far: 38195.808769
Deduct 7389 from 8040 and we're left with 651.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6510, and continue the process.

Moving on to step 15:
When dividing 6510 by 821, we get 7 with a remainder of 763.
Put 7 as the next digit of the answer. 
Result so far: 38195.8087697
The remainder is 763 after subtracting 5747 from 6510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7630, and continue the process.

On to step 16:
If we divide 7630 by 821, we get 9 and a remainder of 241.
Use 9 as the next digit of our solution. 
Result so far: 38195.80876979
Subtracting 7389 from 7630 leaves us with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

The final outcome is 38195.80876979, with a leftover of 2.41e-07.