We look at the division of 80563420 by 51 
Let's see how many times 51 fits into 80563420.

Step 1:
When dividing 8 by 51, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 51

Moving on to step 2:
80 divided by 51 is 1 with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 51 from 80, we get 29.
Bring next digit (5) of the dividend behind the 29 and repeat the process: 295 / 51

On to step 3:
295 divided by 51 is 5 with a remainder of 40.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtract 255 from 295 to get 40.
Append the next digit (6) from the dividend to 40 and continue with: 406 / 51

Moving on to step 4:
The number 51 fits into 406 7 times, leaving a remainder of 49.
Use 7 as the next digit of our solution. 
Result so far: 157.0
If we subtract 357 from 406, we get 49.
Grab the next digit (3) from the dividend, add it to 49, then carry on: 493 / 51

Let's proceed to step 5:
When dividing 493 by 51, we get 9 with a remainder of 34.
Use 9 as the next digit of our solution. 
Result so far: 1579.0
The remainder is 34 after subtracting 459 from 493.
Include the next digit (4) from the dividend after 34, then repeat: 344 / 51

Step 6:
344 divided by 51 is 6 with a remainder of 38.
Put 6 as the next digit of the answer. 
Result so far: 15796.0
Subtract 306 from 344 to get 38.
Grab the next digit (2) from the dividend, add it to 38, then carry on: 382 / 51

Going ahead to step 7:
382 divided by 51 is 7 with a remainder of 25.
Write down 7 as next digit of the result. 
Result so far: 157967.0
The remainder is 25 after subtracting 357 from 382.
Bring next digit (0) of the dividend behind the 25 and repeat the process: 250 / 51

Let's proceed to step 8:
When dividing 250 by 51, we get 4 with a remainder of 46.
The number 4 becomes the next digit in our result. 
Result so far: 1579674.0
Subtracting 204 from 250 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 9:
If we divide 460 by 51, we get 9 and a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 1579674.9
Subtract 459 from 460 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.

Going ahead to step 10:
51 can be fit into 10 0 times, resulting in a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 1579674.9
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.

Let's proceed to step 11:
51 can be fit into 100 1 times, resulting in a remainder of 49.
The next digit of our result is 1. 
Result so far: 1579674.901
Subtracting 51 from 100 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 12:
51 can be fit into 490 9 times, resulting in a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 1579674.9019
Deduct 459 from 490 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 13:
51 goes into 310 6 times with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 1579674.90196
The remainder is 4 after subtracting 306 from 310.
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:
51 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 1579674.90196
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 15:
51 goes into 400 7 times with a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 1579674.9019607
Subtract 357 from 400 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 16:
51 goes into 430 8 times with a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 1579674.90196078
If we take 408 away from 430, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 1579674.90196078, with a leftover of 2.2e-08.