Let's divide 643452 by 31
We're looking to find how many times 31 goes into 643452.

Let's proceed to step 1:
If we divide 6 by 31, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 31

On to step 2:
When dividing 64 by 31, we get 2 with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 2 after subtracting 62 from 64.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 31

Going ahead to step 3:
When dividing 23 by 31, we get 0 with a remainder of 23.
Put 0 as the next digit of the answer. 
Result so far: 20.0
If we take 0 away from 23, we end up with 23.
Fetch the next digit (4) from the dividend, attach it to 23 and continue: 234 / 31

Let's proceed to step 4:
The number 31 fits into 234 7 times, leaving a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 207.0
Subtracting 217 from 234 leaves us with 17.
Bring next digit (5) of the dividend behind the 17 and repeat the process: 175 / 31

Let's proceed to step 5:
The number 31 fits into 175 5 times, leaving a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 2075.0
If we subtract 155 from 175, we get 20.
Fetch the next digit (2) from the dividend, attach it to 20 and continue: 202 / 31

Moving on to step 6:
31 can be fit into 202 6 times, resulting in a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 20756.0
The remainder is 16 after subtracting 186 from 202.
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 7:
When dividing 160 by 31, we get 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 20756.5
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.

Advancing to step 8:
31 can be fit into 50 1 times, resulting in a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 20756.51
Subtracting 31 from 50 leaves us 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:
If we divide 190 by 31, we get 6 and a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 20756.516
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 10:
40 divided by 31 is 1 with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 20756.5161
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.

Step 11:
90 divided by 31 is 2 with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 20756.51612
Subtracting 62 from 90 leaves us with 28.
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:
31 can be fit into 280 9 times, resulting in a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 20756.516129
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.

Step 13:
31 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 20756.516129
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.

Moving on to step 14:
100 divided by 31 is 3 with a remainder of 7.
The next digit of our result is 3. 
Result so far: 20756.51612903
Subtract 93 from 100 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Our division results in 20756.51612903 with a remaining 7e-09.