685185 ÷ 31 
We want to divide 685185 by 31.

Step 1:
31 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 31

Advancing to step 2:
If we divide 68 by 31, we get 2 and a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 62 from 68 leaves us with 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 31

Going ahead to step 3:
The number 31 fits into 65 2 times, leaving a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 22.0
Subtracting 62 from 65 leaves us with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 31

Advancing to step 4:
31 divided by 31 is 1 with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 221.0
The remainder is 0 after subtracting 31 from 31.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 31

Step 5:
31 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 2210.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 31

Let's proceed to step 6:
85 divided by 31 is 2 with a remainder of 23.
Record the quotient 2 as the next digit in the result. 
Result so far: 22102.0
The remainder is 23 after subtracting 62 from 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 7:
When dividing 230 by 31, we get 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 22102.7
Deduct 217 from 230 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 8:
If we divide 130 by 31, we get 4 and a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 22102.74
Subtract 124 from 130 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 9:
If we divide 60 by 31, we get 1 and a remainder of 29.
The next digit of our result is 1. 
Result so far: 22102.741
If we subtract 31 from 60, we get 29.
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 10:
The number 31 fits into 290 9 times, leaving a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 22102.7419
If we take 279 away from 290, we end up with 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 11:
31 goes into 110 3 times with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 22102.74193
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.

On to step 12:
When dividing 170 by 31, we get 5 with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 22102.741935
Deduct 155 from 170 and we're left 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 13:
When dividing 150 by 31, we get 4 with a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 22102.7419354
Deduct 124 from 150 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 14:
260 divided by 31 is 8 with a remainder of 12.
The next digit of our result is 8. 
Result so far: 22102.74193548
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.

After the division, we end up with 22102.74193548 and a remainder of 1.2e-08.