77991860 divided by 553 
Our goal is to divide 77991860 by 553.

Advancing to step 1:
553 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 553

Step 2:
When dividing 77 by 553, we get 0 with a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Append the next digit (9) from the dividend to 77 and continue with: 779 / 553

Going ahead to step 3:
When dividing 779 by 553, we get 1 with a remainder of 226.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 553 from 779, we get 226.
Grab the next digit (9) from the dividend, add it to 226, then carry on: 2269 / 553

On to step 4:
When dividing 2269 by 553, we get 4 with a remainder of 57.
Use 4 as the next digit of our solution. 
Result so far: 14.0
If we subtract 2212 from 2269, we get 57.
Append the next digit (1) from the dividend to 57 and continue with: 571 / 553

Going ahead to step 5:
If we divide 571 by 553, we get 1 and a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 141.0
The remainder is 18 after subtracting 553 from 571.
Bring next digit (8) of the dividend behind the 18 and repeat the process: 188 / 553

Moving on to step 6:
553 can be fit into 188 0 times, resulting in a remainder of 188.
The next digit of our result is 0. 
Result so far: 1410.0
Subtracting 0 from 188 leaves us with 188.
Grab the next digit (6) from the dividend, add it to 188, then carry on: 1886 / 553

On to step 7:
When dividing 1886 by 553, we get 3 with a remainder of 227.
Use 3 as the next digit of our solution. 
Result so far: 14103.0
Deduct 1659 from 1886 and we're left with 227.
Take the next digit (0) from the dividend and append it to 227, then repeat: 2270 / 553

Let's proceed to step 8:
The number 553 fits into 2270 4 times, leaving a remainder of 58.
Write down 4 as next digit of the result. 
Result so far: 141034.0
The remainder is 58 after subtracting 2212 from 2270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 9:
553 goes into 580 1 times with a remainder of 27.
Record the quotient 1 as the next digit in the result. 
Result so far: 141034.1
Deduct 553 from 580 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 10:
270 divided by 553 is 0 with a remainder of 270.
The next digit of our result is 0. 
Result so far: 141034.1
Subtracting 0 from 270 leaves us with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 11:
If we divide 2700 by 553, we get 4 and a remainder of 488.
Put 4 as the next digit of the answer. 
Result so far: 141034.104
The remainder is 488 after subtracting 2212 from 2700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Going ahead to step 12:
553 goes into 4880 8 times with a remainder of 456.
The number 8 becomes the next digit in our result. 
Result so far: 141034.1048
If we subtract 4424 from 4880, we get 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Let's proceed to step 13:
When dividing 4560 by 553, we get 8 with a remainder of 136.
Write down 8 as next digit of the result. 
Result so far: 141034.10488
The remainder is 136 after subtracting 4424 from 4560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

The final outcome is 141034.10488, with a leftover of 0.000136.