We look at the division of 651270 by 42 
We want to divide 651270 by 42.

Let's proceed to step 1:
The number 42 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 42

On to step 2:
65 divided by 42 is 1 with a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 42 from 65 and we're left with 23.
Include the next digit (1) from the dividend after 23, then repeat: 231 / 42

Moving on to step 3:
231 divided by 42 is 5 with a remainder of 21.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtract 210 from 231 to get 21.
Include the next digit (2) from the dividend after 21, then repeat: 212 / 42

Advancing to step 4:
42 can be fit into 212 5 times, resulting in a remainder of 2.
Put 5 as the next digit of the answer. 
Result so far: 155.0
If we subtract 210 from 212, we get 2.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 42

Moving on to step 5:
The number 42 fits into 27 0 times, leaving a remainder of 27.
Write down 0 as next digit of the result. 
Result so far: 1550.0
If we take 0 away from 27, we end up with 27.
Fetch the next digit (0) from the dividend, attach it to 27 and continue: 270 / 42

On to step 6:
If we divide 270 by 42, we get 6 and a remainder of 18.
Put 6 as the next digit of the answer. 
Result so far: 15506.0
The remainder is 18 after subtracting 252 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 7:
180 divided by 42 is 4 with a remainder of 12.
The number 4 becomes the next digit in our result. 
Result so far: 15506.4
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
When dividing 120 by 42, we get 2 with a remainder of 36.
The next digit of our result is 2. 
Result so far: 15506.42
If we subtract 84 from 120, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 9:
The number 42 fits into 360 8 times, leaving a remainder of 24.
The next digit of our result is 8. 
Result so far: 15506.428
Deduct 336 from 360 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 10:
42 goes into 240 5 times with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 15506.4285
Subtracting 210 from 240 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
42 goes into 300 7 times with a remainder of 6.
The next digit of our result is 7. 
Result so far: 15506.42857
Subtract 294 from 300 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 12:
The number 42 fits into 60 1 times, leaving a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 15506.428571
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 13:
The number 42 fits into 180 4 times, leaving a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 15506.4285714
Subtracting 168 from 180 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 14:
If we divide 120 by 42, we get 2 and a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 15506.42857142
Subtract 84 from 120 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The quotient of the division is 15506.42857142, and the remainder is 3.6e-08.