420247 divided by 51 
Our goal is to divide 420247 by 51.

On to step 1:
When dividing 4 by 51, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 51

Moving on to step 2:
When dividing 42 by 51, we get 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Fetch the next digit (0) from the dividend, attach it to 42 and continue: 420 / 51

On to step 3:
420 divided by 51 is 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 408 from 420 to get 12.
Grab the next digit (2) from the dividend, add it to 12, then carry on: 122 / 51

Advancing to step 4:
122 divided by 51 is 2 with a remainder of 20.
Record the quotient 2 as the next digit in the result. 
Result so far: 82.0
Subtract 102 from 122 to get 20.
Fetch the next digit (4) from the dividend, attach it to 20 and continue: 204 / 51

Moving on to step 5:
51 can be fit into 204 4 times, resulting in a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 824.0
If we take 204 away from 204, we end up with 0.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 51

On to step 6:
51 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 8240.0
Subtract 0 from 7 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.

On to step 7:
51 can be fit into 70 1 times, resulting in a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 8240.1
If we subtract 51 from 70, we get 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 8:
51 can be fit into 190 3 times, resulting in a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 8240.13
The remainder is 37 after subtracting 153 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 9:
51 goes into 370 7 times with a remainder of 13.
The next digit of our result is 7. 
Result so far: 8240.137
The remainder is 13 after subtracting 357 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 10:
130 divided by 51 is 2 with a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 8240.1372
Subtracting 102 from 130 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.

On to step 11:
If we divide 280 by 51, we get 5 and a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 8240.13725
If we subtract 255 from 280, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 12:
The number 51 fits into 250 4 times, leaving a remainder of 46.
The next digit of our result is 4. 
Result so far: 8240.137254
Subtract 204 from 250 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 13:
51 goes into 460 9 times with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 8240.1372549
If we subtract 459 from 460, we 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.

Moving on to step 14:
10 divided by 51 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 8240.1372549
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 8240.1372549, and the remainder is 1e-08.