We're dividing 77850 by 77 
We want to divide 77850 by 77.

On to step 1:
7 divided by 77 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 77

Step 2:
The number 77 fits into 77 1 times, leaving a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 0 after subtracting 77 from 77.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 77

On to step 3:
If we divide 8 by 77, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 77

Going ahead to step 4:
85 divided by 77 is 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 101.0
Subtract 77 from 85 to get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 77

Moving on to step 5:
80 divided by 77 is 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 1011.0
Deduct 77 from 80 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 6:
The number 77 fits into 30 0 times, leaving a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 1011.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 7:
If we divide 300 by 77, we get 3 and a remainder of 69.
Put 3 as the next digit of the answer. 
Result so far: 1011.03
Subtract 231 from 300 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 8:
The number 77 fits into 690 8 times, leaving a remainder of 74.
The number 8 becomes the next digit in our result. 
Result so far: 1011.038
If we take 616 away from 690, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 9:
77 can be fit into 740 9 times, resulting in a remainder of 47.
Record the quotient 9 as the next digit in the result. 
Result so far: 1011.0389
Subtracting 693 from 740 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 10:
77 can be fit into 470 6 times, resulting in a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 1011.03896
Deduct 462 from 470 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 11:
80 divided by 77 is 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1011.038961
The remainder is 3 after subtracting 77 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 12:
If we divide 30 by 77, we get 0 and a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 1011.038961
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 13:
If we divide 300 by 77, we get 3 and a remainder of 69.
Put 3 as the next digit of the answer. 
Result so far: 1011.03896103
Deduct 231 from 300 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

After the division, we end up with 1011.03896103 and a remainder of 6.9e-08.