Let's divide 645870 by 57
Our goal is to divide 645870 by 57.

Going ahead to step 1:
57 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 57

Step 2:
If we divide 64 by 57, we get 1 and a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 57 away from 64, we end up with 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 57

Step 3:
If we divide 75 by 57, we get 1 and a remainder of 18.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtract 57 from 75 to get 18.
Bring next digit (8) of the dividend behind the 18 and repeat the process: 188 / 57

On to step 4:
If we divide 188 by 57, we get 3 and a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 113.0
If we take 171 away from 188, we end up with 17.
Fetch the next digit (7) from the dividend, attach it to 17 and continue: 177 / 57

Step 5:
57 can be fit into 177 3 times, resulting in a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 1133.0
Deduct 171 from 177 and we're left with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 57

Going ahead to step 6:
When dividing 60 by 57, we get 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 11331.0
Deduct 57 from 60 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
When dividing 30 by 57, we get 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 11331.0
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
The number 57 fits into 300 5 times, leaving a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 11331.05
Subtracting 285 from 300 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
If we divide 150 by 57, we get 2 and a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 11331.052
Subtracting 114 from 150 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 10:
360 divided by 57 is 6 with a remainder of 18.
Write down 6 as next digit of the result. 
Result so far: 11331.0526
If we take 342 away from 360, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 11:
57 goes into 180 3 times with a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 11331.05263
Deduct 171 from 180 and we're left 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.

Let's proceed to step 12:
When dividing 90 by 57, we get 1 with a remainder of 33.
Use 1 as the next digit of our solution. 
Result so far: 11331.052631
Subtract 57 from 90 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 13:
57 goes into 330 5 times with a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 11331.0526315
Deduct 285 from 330 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 14:
If we divide 450 by 57, we get 7 and a remainder of 51.
Write down 7 as next digit of the result. 
Result so far: 11331.05263157
If we subtract 399 from 450, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

After the division, we end up with 11331.05263157 and a remainder of 5.1e-08.