991839 ÷ 31 
We want to figure out the number of times 991839 can be divided by 31.

Moving on to step 1:
When dividing 9 by 31, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 31

Going ahead to step 2:
The number 31 fits into 99 3 times, leaving a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 93 from 99 and we're left with 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 31

Going ahead to step 3:
When dividing 61 by 31, we get 1 with a remainder of 30.
The next digit of our result is 1. 
Result so far: 31.0
If we subtract 31 from 61, we get 30.
Grab the next digit (8) from the dividend, add it to 30, then carry on: 308 / 31

Advancing to step 4:
If we divide 308 by 31, we get 9 and a remainder of 29.
Use 9 as the next digit of our solution. 
Result so far: 319.0
If we subtract 279 from 308, we get 29.
Append the next digit (3) from the dividend to 29 and continue with: 293 / 31

Going ahead to step 5:
The number 31 fits into 293 9 times, leaving a remainder of 14.
Use 9 as the next digit of our solution. 
Result so far: 3199.0
The remainder is 14 after subtracting 279 from 293.
Fetch the next digit (9) from the dividend, attach it to 14 and continue: 149 / 31

Advancing to step 6:
The number 31 fits into 149 4 times, leaving a remainder of 25.
Use 4 as the next digit of our solution. 
Result so far: 31994.0
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.

Going ahead to step 7:
When dividing 250 by 31, we get 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 31994.8
If we take 248 away from 250, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
When dividing 20 by 31, we get 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 31994.8
Subtracting 0 from 20 leaves us 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.

Going ahead to step 9:
31 can be fit into 200 6 times, resulting in a remainder of 14.
The next digit of our result is 6. 
Result so far: 31994.806
If we subtract 186 from 200, we get 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:
When dividing 140 by 31, we get 4 with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 31994.8064
The remainder is 16 after subtracting 124 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 11:
When dividing 160 by 31, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 31994.80645
The remainder is 5 after subtracting 155 from 160.
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:
50 divided by 31 is 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 31994.806451
The remainder is 19 after subtracting 31 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 13:
The number 31 fits into 190 6 times, leaving a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 31994.8064516
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.

On to step 14:
When dividing 40 by 31, we get 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 31994.80645161
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.

After the division, we end up with 31994.80645161 and a remainder of 9e-09.