431102 ÷ 31 
We want to figure out the number of times 431102 can be divided by 31.

On to step 1:
31 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 31

On to step 2:
31 can be fit into 43 1 times, resulting in a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 31 from 43 to get 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 31

On to step 3:
121 divided by 31 is 3 with a remainder of 28.
The next digit of our result is 3. 
Result so far: 13.0
If we subtract 93 from 121, we get 28.
Bring next digit (1) of the dividend behind the 28 and repeat the process: 281 / 31

Moving on to step 4:
31 can be fit into 281 9 times, resulting in a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 139.0
Subtract 279 from 281 to get 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 31

Let's proceed to step 5:
20 divided by 31 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 1390.0
Subtract 0 from 20 to get 20.
Fetch the next digit (2) from the dividend, attach it to 20 and continue: 202 / 31

Advancing to step 6:
When dividing 202 by 31, we get 6 with a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 13906.0
Subtract 186 from 202 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 7:
When dividing 160 by 31, we get 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 13906.5
If we take 155 away from 160, we end up 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.

Advancing to step 8:
31 can be fit into 50 1 times, resulting in a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 13906.51
Deduct 31 from 50 and we're left 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.

Moving on to step 9:
31 can be fit into 190 6 times, resulting in a remainder of 4.
The next digit of our result is 6. 
Result so far: 13906.516
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:
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: 13906.5161
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:
90 divided by 31 is 2 with a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 13906.51612
Subtract 62 from 90 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing 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: 13906.516129
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.

On to step 13:
The number 31 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 13906.516129
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.

Going ahead to step 14:
31 goes into 100 3 times with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 13906.51612903
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.

The final outcome is 13906.51612903, with a leftover of 7e-09.