Let's divide 428290 by 31
We're looking to find how many times 31 goes into 428290.

On to step 1:
31 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 31

Moving on to step 2:
42 divided by 31 is 1 with a remainder of 11.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 11 after subtracting 31 from 42.
Append the next digit (8) from the dividend to 11 and continue with: 118 / 31

Step 3:
31 can be fit into 118 3 times, resulting in a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 13.0
Deduct 93 from 118 and we're left with 25.
Grab the next digit (2) from the dividend, add it to 25, then carry on: 252 / 31

Moving on to step 4:
31 can be fit into 252 8 times, resulting in a remainder of 4.
The next digit of our result is 8. 
Result so far: 138.0
If we subtract 248 from 252, we get 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 31

Let's proceed to step 5:
If we divide 49 by 31, we get 1 and a remainder of 18.
The number 1 becomes the next digit in our result. 
Result so far: 1381.0
If we subtract 31 from 49, we get 18.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 31

Going ahead to step 6:
31 can be fit into 180 5 times, resulting in a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 13815.0
If we take 155 away from 180, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 7:
If we divide 250 by 31, we get 8 and a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 13815.8
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.

On to step 8:
31 goes into 20 0 times with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 13815.8
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
31 can be fit into 200 6 times, resulting in a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 13815.806
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.

Moving on to step 10:
31 can be fit into 140 4 times, resulting in a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 13815.8064
Subtract 124 from 140 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.

Step 11:
If we divide 160 by 31, we get 5 and a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 13815.80645
Subtracting 155 from 160 leaves us 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 12:
31 can be fit into 50 1 times, resulting in a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 13815.806451
If we take 31 away from 50, 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.

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: 13815.8064516
The remainder is 4 after subtracting 186 from 190.
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:
If we divide 40 by 31, we get 1 and a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 13815.80645161
Subtracting 31 from 40 leaves us with 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 13815.80645161, with a leftover of 9e-09.