802100 divided by 31 
We want to divide 802100 by 31.

On to step 1:
8 divided by 31 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 31

Let's proceed to step 2:
If we divide 80 by 31, we get 2 and a remainder of 18.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 62 from 80, we get 18.
Bring next digit (2) of the dividend behind the 18 and repeat the process: 182 / 31

Going ahead to step 3:
182 divided by 31 is 5 with a remainder of 27.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
The remainder is 27 after subtracting 155 from 182.
Bring next digit (1) of the dividend behind the 27 and repeat the process: 271 / 31

Step 4:
31 can be fit into 271 8 times, resulting in a remainder of 23.
The next digit of our result is 8. 
Result so far: 258.0
Deduct 248 from 271 and we're left with 23.
Bring next digit (0) of the dividend behind the 23 and repeat the process: 230 / 31

Advancing to step 5:
If we divide 230 by 31, we get 7 and a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 2587.0
Deduct 217 from 230 and we're left with 13.
Take the next digit (0) from the dividend and append it to 13, then repeat: 130 / 31

Step 6:
130 divided by 31 is 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 25874.0
Deduct 124 from 130 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
When dividing 60 by 31, we get 1 with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 25874.1
The remainder is 29 after subtracting 31 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 8:
290 divided by 31 is 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 25874.19
If we subtract 279 from 290, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 9:
When dividing 110 by 31, we get 3 with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 25874.193
Deduct 93 from 110 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 10:
When dividing 170 by 31, we get 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 25874.1935
If we take 155 away from 170, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 11:
The number 31 fits into 150 4 times, leaving a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 25874.19354
Subtract 124 from 150 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 12:
260 divided by 31 is 8 with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 25874.193548
Subtract 248 from 260 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 13:
When dividing 120 by 31, we get 3 with a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 25874.1935483
If we subtract 93 from 120, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 14:
31 can be fit into 270 8 times, resulting in a remainder of 22.
The next digit of our result is 8. 
Result so far: 25874.19354838
Deduct 248 from 270 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 25874.19354838, with a leftover of 2.2e-08.