We look at the division of 615809 by 31 
Our goal is to divide 615809 by 31.

Moving on to step 1:
6 divided by 31 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (1) from the dividend to 6 and continue with: 61 / 31

Advancing to step 2:
The number 31 fits into 61 1 times, leaving a remainder of 30.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 31 from 61 to get 30.
Fetch the next digit (5) from the dividend, attach it to 30 and continue: 305 / 31

On to step 3:
The number 31 fits into 305 9 times, leaving a remainder of 26.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtracting 279 from 305 leaves us with 26.
Include the next digit (8) from the dividend after 26, then repeat: 268 / 31

Going ahead to step 4:
268 divided by 31 is 8 with a remainder of 20.
Record the quotient 8 as the next digit in the result. 
Result so far: 198.0
If we take 248 away from 268, we end up with 20.
Fetch the next digit (0) from the dividend, attach it to 20 and continue: 200 / 31

Step 5:
When dividing 200 by 31, we get 6 with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 1986.0
If we take 186 away from 200, we end up with 14.
Append the next digit (9) from the dividend to 14 and continue with: 149 / 31

Step 6:
31 goes into 149 4 times with a remainder of 25.
Put 4 as the next digit of the answer. 
Result so far: 19864.0
If we subtract 124 from 149, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 7:
250 divided by 31 is 8 with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 19864.8
The remainder is 2 after subtracting 248 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
When dividing 20 by 31, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 19864.8
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
31 goes into 200 6 times with a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 19864.806
Deduct 186 from 200 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
140 divided by 31 is 4 with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 19864.8064
Deduct 124 from 140 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 11:
If we divide 160 by 31, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 19864.80645
Deduct 155 from 160 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 12:
If we divide 50 by 31, we get 1 and a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 19864.806451
Subtract 31 from 50 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 13:
When dividing 190 by 31, we get 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 19864.8064516
If we take 186 away from 190, we end up 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.

Moving on to step 14:
31 goes into 40 1 times with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 19864.80645161
Subtract 31 from 40 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The final outcome is 19864.80645161, with a leftover of 9e-09.