Let's divide 580420 by 77
We want to figure out the number of times 580420 can be divided by 77.

Let's proceed to step 1:
77 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (8) from the dividend to 5 and continue with: 58 / 77

Let's proceed to step 2:
77 goes into 58 0 times with a remainder of 58.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 58 leaves us with 58.
Append the next digit (0) from the dividend to 58 and continue with: 580 / 77

Advancing to step 3:
The number 77 fits into 580 7 times, leaving a remainder of 41.
The next digit of our result is 7. 
Result so far: 7.0
Deduct 539 from 580 and we're left with 41.
Append the next digit (4) from the dividend to 41 and continue with: 414 / 77

Going ahead to step 4:
When dividing 414 by 77, we get 5 with a remainder of 29.
Use 5 as the next digit of our solution. 
Result so far: 75.0
The remainder is 29 after subtracting 385 from 414.
Include the next digit (2) from the dividend after 29, then repeat: 292 / 77

On to step 5:
77 can be fit into 292 3 times, resulting in a remainder of 61.
Write down 3 as next digit of the result. 
Result so far: 753.0
Subtract 231 from 292 to get 61.
Append the next digit (0) from the dividend to 61 and continue with: 610 / 77

On to step 6:
When dividing 610 by 77, we get 7 with a remainder of 71.
The next digit of our result is 7. 
Result so far: 7537.0
Subtracting 539 from 610 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 7:
77 goes into 710 9 times with a remainder of 17.
The next digit of our result is 9. 
Result so far: 7537.9
Subtract 693 from 710 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 8:
170 divided by 77 is 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 7537.92
The remainder is 16 after subtracting 154 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 9:
77 goes into 160 2 times with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 7537.922
If we subtract 154 from 160, we 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.

The final result is 7537.922 with a remainder of 0.0006.