We look at the division of 615540 by 31 
Let's see how many times 31 fits into 615540.

Going ahead to step 1:
When dividing 6 by 31, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (1) from the dividend to 6 and continue with: 61 / 31

Step 2:
If we divide 61 by 31, we get 1 and a remainder of 30.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 31 from 61 to get 30.
Grab the next digit (5) from the dividend, add it to 30, then carry on: 305 / 31

Advancing to step 3:
When dividing 305 by 31, we get 9 with a remainder of 26.
Use 9 as the next digit of our solution. 
Result so far: 19.0
If we take 279 away from 305, we end up with 26.
Append the next digit (5) from the dividend to 26 and continue with: 265 / 31

Step 4:
265 divided by 31 is 8 with a remainder of 17.
Use 8 as the next digit of our solution. 
Result so far: 198.0
If we subtract 248 from 265, we get 17.
Append the next digit (4) from the dividend to 17 and continue with: 174 / 31

On to step 5:
174 divided by 31 is 5 with a remainder of 19.
Put 5 as the next digit of the answer. 
Result so far: 1985.0
If we subtract 155 from 174, we get 19.
Take the next digit (0) from the dividend and append it to 19, then repeat: 190 / 31

Step 6:
31 can be fit into 190 6 times, resulting in a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 19856.0
Subtracting 186 from 190 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 7:
31 can be fit into 40 1 times, resulting in a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 19856.1
The remainder is 9 after subtracting 31 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 8:
31 can be fit into 90 2 times, resulting in a remainder of 28.
Write down 2 as next digit of the result. 
Result so far: 19856.12
The remainder is 28 after subtracting 62 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 9:
If we divide 280 by 31, we get 9 and a remainder of 1.
The next digit of our result is 9. 
Result so far: 19856.129
Subtract 279 from 280 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 10:
31 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 19856.129
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
The number 31 fits into 100 3 times, leaving a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 19856.12903
If we subtract 93 from 100, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 12:
When dividing 70 by 31, we get 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 19856.129032
The remainder is 8 after subtracting 62 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 13:
31 goes into 80 2 times with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 19856.1290322
If we subtract 62 from 80, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final result is 19856.1290322 with a remainder of 1.8e-07.