We look at the division of 51213113 by 580 
We want to figure out the number of times 51213113 can be divided by 580.

On to step 1:
The number 580 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 580

On to step 2:
51 divided by 580 is 0 with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Include the next digit (2) from the dividend after 51, then repeat: 512 / 580

Going ahead to step 3:
The number 580 fits into 512 0 times, leaving a remainder of 512.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 512, we get 512.
Take the next digit (1) from the dividend and append it to 512, then repeat: 5121 / 580

Advancing to step 4:
580 can be fit into 5121 8 times, resulting in a remainder of 481.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 4640 from 5121, we get 481.
Fetch the next digit (3) from the dividend, attach it to 481 and continue: 4813 / 580

Let's proceed to step 5:
4813 divided by 580 is 8 with a remainder of 173.
Write down 8 as next digit of the result. 
Result so far: 88.0
If we subtract 4640 from 4813, we get 173.
Take the next digit (1) from the dividend and append it to 173, then repeat: 1731 / 580

Let's proceed to step 6:
580 goes into 1731 2 times with a remainder of 571.
The next digit of our result is 2. 
Result so far: 882.0
Subtracting 1160 from 1731 leaves us with 571.
Include the next digit (1) from the dividend after 571, then repeat: 5711 / 580

Let's proceed to step 7:
580 can be fit into 5711 9 times, resulting in a remainder of 491.
Write down 9 as next digit of the result. 
Result so far: 8829.0
If we subtract 5220 from 5711, we get 491.
Take the next digit (3) from the dividend and append it to 491, then repeat: 4913 / 580

On to step 8:
When dividing 4913 by 580, we get 8 with a remainder of 273.
Write down 8 as next digit of the result. 
Result so far: 88298.0
Deduct 4640 from 4913 and we're left with 273.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2730, and continue the process.

Advancing to step 9:
2730 divided by 580 is 4 with a remainder of 410.
Record the quotient 4 as the next digit in the result. 
Result so far: 88298.4
Subtract 2320 from 2730 to get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Moving on to step 10:
When dividing 4100 by 580, we get 7 with a remainder of 40.
Use 7 as the next digit of our solution. 
Result so far: 88298.47
Subtracting 4060 from 4100 leaves us 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 11:
The number 580 fits into 400 0 times, leaving a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 88298.47
Subtract 0 from 400 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 12:
580 goes into 4000 6 times with a remainder of 520.
Use 6 as the next digit of our solution. 
Result so far: 88298.4706
The remainder is 520 after subtracting 3480 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Moving on to step 13:
The number 580 fits into 5200 8 times, leaving a remainder of 560.
Use 8 as the next digit of our solution. 
Result so far: 88298.47068
Subtract 4640 from 5200 to get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 14:
When dividing 5600 by 580, we get 9 with a remainder of 380.
Record the quotient 9 as the next digit in the result. 
Result so far: 88298.470689
If we subtract 5220 from 5600, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 15:
The number 580 fits into 3800 6 times, leaving a remainder of 320.
The number 6 becomes the next digit in our result. 
Result so far: 88298.4706896
Subtracting 3480 from 3800 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 16:
If we divide 3200 by 580, we get 5 and a remainder of 300.
Put 5 as the next digit of the answer. 
Result so far: 88298.47068965
Subtracting 2900 from 3200 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The final result is 88298.47068965 with a remainder of 3e-07.