We divide 51380597 by 80
We're looking to find how many times 80 goes into 51380597.

Moving on to step 1:
The number 80 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 80

Advancing to step 2:
51 divided by 80 is 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Append the next digit (3) from the dividend to 51 and continue with: 513 / 80

Moving on to step 3:
If we divide 513 by 80, we get 6 and a remainder of 33.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 480 away from 513, we end up with 33.
Grab the next digit (8) from the dividend, add it to 33, then carry on: 338 / 80

Advancing to step 4:
If we divide 338 by 80, we get 4 and a remainder of 18.
Write down 4 as next digit of the result. 
Result so far: 64.0
The remainder is 18 after subtracting 320 from 338.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 80

Advancing to step 5:
If we divide 180 by 80, we get 2 and a remainder of 20.
The next digit of our result is 2. 
Result so far: 642.0
The remainder is 20 after subtracting 160 from 180.
Grab the next digit (5) from the dividend, add it to 20, then carry on: 205 / 80

Going ahead to step 6:
If we divide 205 by 80, we get 2 and a remainder of 45.
The next digit of our result is 2. 
Result so far: 6422.0
Subtract 160 from 205 to get 45.
Take the next digit (9) from the dividend and append it to 45, then repeat: 459 / 80

On to step 7:
459 divided by 80 is 5 with a remainder of 59.
Record the quotient 5 as the next digit in the result. 
Result so far: 64225.0
If we subtract 400 from 459, we get 59.
Bring next digit (7) of the dividend behind the 59 and repeat the process: 597 / 80

On to step 8:
The number 80 fits into 597 7 times, leaving a remainder of 37.
The number 7 becomes the next digit in our result. 
Result so far: 642257.0
The remainder is 37 after subtracting 560 from 597.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 9:
370 divided by 80 is 4 with a remainder of 50.
Use 4 as the next digit of our solution. 
Result so far: 642257.4
Subtract 320 from 370 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 10:
If we divide 500 by 80, we get 6 and a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 642257.46
If we take 480 away from 500, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
80 can be fit into 200 2 times, resulting in a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 642257.462
Deduct 160 from 200 and we're left 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.

Going ahead to step 12:
When dividing 400 by 80, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 642257.4625
If we subtract 400 from 400, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 13:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 642257.4625
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 14:
If we divide 0 by 80, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 642257.4625
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 642257.4625 with a remaining 0.0.