Let's divide 19906018 by 31
We're looking to find how many times 31 goes into 19906018.

On to step 1:
The number 31 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 31

Let's proceed to step 2:
31 goes into 19 0 times with a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 19 leaves us with 19.
Fetch the next digit (9) from the dividend, attach it to 19 and continue: 199 / 31

On to step 3:
When dividing 199 by 31, we get 6 with a remainder of 13.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 13 after subtracting 186 from 199.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 31

Moving on to step 4:
The number 31 fits into 130 4 times, leaving a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 64.0
If we subtract 124 from 130, we get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 31

Step 5:
If we divide 66 by 31, we get 2 and a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 642.0
Subtract 62 from 66 to get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 31

On to step 6:
31 goes into 40 1 times with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 6421.0
If we subtract 31 from 40, we get 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 31

Moving on to step 7:
When dividing 91 by 31, we get 2 with a remainder of 29.
Use 2 as the next digit of our solution. 
Result so far: 64212.0
The remainder is 29 after subtracting 62 from 91.
Include the next digit (8) from the dividend after 29, then repeat: 298 / 31

Step 8:
The number 31 fits into 298 9 times, leaving a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 642129.0
If we take 279 away from 298, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 9:
The number 31 fits into 190 6 times, leaving a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 642129.6
If we subtract 186 from 190, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
The number 31 fits into 40 1 times, leaving a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 642129.61
If we subtract 31 from 40, we 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.

On to step 11:
31 goes into 90 2 times with a remainder of 28.
The next digit of our result is 2. 
Result so far: 642129.612
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.

Let's proceed to step 12:
The number 31 fits into 280 9 times, leaving a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 642129.6129
If we take 279 away from 280, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 13:
10 divided by 31 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 642129.6129
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 14:
31 goes into 100 3 times with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 642129.612903
Deduct 93 from 100 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 15:
If we divide 70 by 31, we get 2 and a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 642129.6129032
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.

Moving on to step 16:
The number 31 fits into 80 2 times, leaving a remainder of 18.
The next digit of our result is 2. 
Result so far: 642129.61290322
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 642129.61290322 with a remainder of 1.8e-08.