Let's divide 77700661 by 988
We're looking to find how many times 988 goes into 77700661.

On to step 1:
7 divided by 988 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 988

Let's proceed to step 2:
77 divided by 988 is 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.
Include the next digit (7) from the dividend after 77, then repeat: 777 / 988

Going ahead to step 3:
988 can be fit into 777 0 times, resulting in a remainder of 777.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 777 to get 777.
Bring next digit (0) of the dividend behind the 777 and repeat the process: 7770 / 988

Step 4:
988 can be fit into 7770 7 times, resulting in a remainder of 854.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 6916 from 7770 and we're left with 854.
Append the next digit (0) from the dividend to 854 and continue with: 8540 / 988

Step 5:
The number 988 fits into 8540 8 times, leaving a remainder of 636.
The next digit of our result is 8. 
Result so far: 78.0
Subtracting 7904 from 8540 leaves us with 636.
Grab the next digit (6) from the dividend, add it to 636, then carry on: 6366 / 988

Moving on to step 6:
6366 divided by 988 is 6 with a remainder of 438.
Write down 6 as next digit of the result. 
Result so far: 786.0
If we take 5928 away from 6366, we end up with 438.
Include the next digit (6) from the dividend after 438, then repeat: 4386 / 988

Step 7:
4386 divided by 988 is 4 with a remainder of 434.
Use 4 as the next digit of our solution. 
Result so far: 7864.0
If we take 3952 away from 4386, we end up with 434.
Include the next digit (1) from the dividend after 434, then repeat: 4341 / 988

Let's proceed to step 8:
988 can be fit into 4341 4 times, resulting in a remainder of 389.
Put 4 as the next digit of the answer. 
Result so far: 78644.0
The remainder is 389 after subtracting 3952 from 4341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3890, and continue the process.

Advancing to step 9:
988 can be fit into 3890 3 times, resulting in a remainder of 926.
Use 3 as the next digit of our solution. 
Result so far: 78644.3
Subtract 2964 from 3890 to get 926.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9260, and continue the process.

On to step 10:
9260 divided by 988 is 9 with a remainder of 368.
The next digit of our result is 9. 
Result so far: 78644.39
The remainder is 368 after subtracting 8892 from 9260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

On to step 11:
988 goes into 3680 3 times with a remainder of 716.
The number 3 becomes the next digit in our result. 
Result so far: 78644.393
Subtract 2964 from 3680 to get 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

Step 12:
988 goes into 7160 7 times with a remainder of 244.
Write down 7 as next digit of the result. 
Result so far: 78644.3937
Subtracting 6916 from 7160 leaves us with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Advancing to step 13:
2440 divided by 988 is 2 with a remainder of 464.
Use 2 as the next digit of our solution. 
Result so far: 78644.39372
Subtract 1976 from 2440 to get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Let's proceed to step 14:
The number 988 fits into 4640 4 times, leaving a remainder of 688.
The number 4 becomes the next digit in our result. 
Result so far: 78644.393724
If we take 3952 away from 4640, we end up with 688.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6880, and continue the process.

Let's proceed to step 15:
988 goes into 6880 6 times with a remainder of 952.
The next digit of our result is 6. 
Result so far: 78644.3937246
Subtracting 5928 from 6880 leaves us with 952.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9520, and continue the process.

Moving on to step 16:
9520 divided by 988 is 9 with a remainder of 628.
Write down 9 as next digit of the result. 
Result so far: 78644.39372469
Deduct 8892 from 9520 and we're left with 628.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

The quotient of the division is 78644.39372469, and the remainder is 6.28e-07.