31587828 ÷ 813 
We're looking to find how many times 813 goes into 31587828.

On to step 1:
3 divided by 813 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 813

On to step 2:
If we divide 31 by 813, we get 0 and a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Bring next digit (5) of the dividend behind the 31 and repeat the process: 315 / 813

On to step 3:
The number 813 fits into 315 0 times, leaving a remainder of 315.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 315 after subtracting 0 from 315.
Fetch the next digit (8) from the dividend, attach it to 315 and continue: 3158 / 813

On to step 4:
The number 813 fits into 3158 3 times, leaving a remainder of 719.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 2439 from 3158 and we're left with 719.
Grab the next digit (7) from the dividend, add it to 719, then carry on: 7197 / 813

Let's proceed to step 5:
7197 divided by 813 is 8 with a remainder of 693.
Use 8 as the next digit of our solution. 
Result so far: 38.0
The remainder is 693 after subtracting 6504 from 7197.
Fetch the next digit (8) from the dividend, attach it to 693 and continue: 6938 / 813

Moving on to step 6:
6938 divided by 813 is 8 with a remainder of 434.
The number 8 becomes the next digit in our result. 
Result so far: 388.0
Subtract 6504 from 6938 to get 434.
Fetch the next digit (2) from the dividend, attach it to 434 and continue: 4342 / 813

Advancing to step 7:
If we divide 4342 by 813, we get 5 and a remainder of 277.
Record the quotient 5 as the next digit in the result. 
Result so far: 3885.0
If we subtract 4065 from 4342, we get 277.
Grab the next digit (8) from the dividend, add it to 277, then carry on: 2778 / 813

Moving on to step 8:
2778 divided by 813 is 3 with a remainder of 339.
Use 3 as the next digit of our solution. 
Result so far: 38853.0
If we take 2439 away from 2778, we end up with 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Let's proceed to step 9:
813 goes into 3390 4 times with a remainder of 138.
Use 4 as the next digit of our solution. 
Result so far: 38853.4
The remainder is 138 after subtracting 3252 from 3390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Moving on to step 10:
If we divide 1380 by 813, we get 1 and a remainder of 567.
Put 1 as the next digit of the answer. 
Result so far: 38853.41
If we take 813 away from 1380, we end up with 567.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5670, and continue the process.

Advancing to step 11:
The number 813 fits into 5670 6 times, leaving a remainder of 792.
Record the quotient 6 as the next digit in the result. 
Result so far: 38853.416
Deduct 4878 from 5670 and we're left with 792.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7920, and continue the process.

Advancing to step 12:
7920 divided by 813 is 9 with a remainder of 603.
Write down 9 as next digit of the result. 
Result so far: 38853.4169
Subtracting 7317 from 7920 leaves us with 603.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6030, and continue the process.

Step 13:
6030 divided by 813 is 7 with a remainder of 339.
Write down 7 as next digit of the result. 
Result so far: 38853.41697
Subtract 5691 from 6030 to get 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Step 14:
The number 813 fits into 3390 4 times, leaving a remainder of 138.
The number 4 becomes the next digit in our result. 
Result so far: 38853.416974
Deduct 3252 from 3390 and we're left with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Advancing to step 15:
813 goes into 1380 1 times with a remainder of 567.
The number 1 becomes the next digit in our result. 
Result so far: 38853.4169741
The remainder is 567 after subtracting 813 from 1380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5670, and continue the process.

On to step 16:
813 can be fit into 5670 6 times, resulting in a remainder of 792.
Use 6 as the next digit of our solution. 
Result so far: 38853.41697416
Subtract 4878 from 5670 to get 792.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7920, and continue the process.

After the division, we end up with 38853.41697416 and a remainder of 7.92e-07.