600090 ÷ 77 
Our goal is to divide 600090 by 77.

Let's proceed to step 1:
6 divided by 77 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 77

Advancing to step 2:
77 can be fit into 60 0 times, resulting in a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 60 and we're left with 60.
Fetch the next digit (0) from the dividend, attach it to 60 and continue: 600 / 77

Moving on to step 3:
77 goes into 600 7 times with a remainder of 61.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 539 from 600, we get 61.
Fetch the next digit (0) from the dividend, attach it to 61 and continue: 610 / 77

Going ahead to step 4:
If we divide 610 by 77, we get 7 and a remainder of 71.
Put 7 as the next digit of the answer. 
Result so far: 77.0
Deduct 539 from 610 and we're left with 71.
Take the next digit (9) from the dividend and append it to 71, then repeat: 719 / 77

Going ahead to step 5:
When dividing 719 by 77, we get 9 with a remainder of 26.
Put 9 as the next digit of the answer. 
Result so far: 779.0
Subtract 693 from 719 to get 26.
Bring next digit (0) of the dividend behind the 26 and repeat the process: 260 / 77

Step 6:
If we divide 260 by 77, we get 3 and a remainder of 29.
Write down 3 as next digit of the result. 
Result so far: 7793.0
Deduct 231 from 260 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
The number 77 fits into 290 3 times, leaving a remainder of 59.
The number 3 becomes the next digit in our result. 
Result so far: 7793.3
Subtract 231 from 290 to get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 8:
When dividing 590 by 77, we get 7 with a remainder of 51.
Use 7 as the next digit of our solution. 
Result so far: 7793.37
Subtracting 539 from 590 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Moving on to step 9:
The number 77 fits into 510 6 times, leaving a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 7793.376
Subtracting 462 from 510 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 10:
77 goes into 480 6 times with a remainder of 18.
Use 6 as the next digit of our solution. 
Result so far: 7793.3766
Subtracting 462 from 480 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final result is 7793.3766 with a remainder of 0.00018.