We divide 79517539 by 686
Our goal is to divide 79517539 by 686.

Going ahead to step 1:
686 can be fit into 7 0 times, resulting in 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.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 686

Let's proceed to step 2:
79 divided by 686 is 0 with a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 79 after subtracting 0 from 79.
Fetch the next digit (5) from the dividend, attach it to 79 and continue: 795 / 686

Moving on to step 3:
If we divide 795 by 686, we get 1 and a remainder of 109.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 109 after subtracting 686 from 795.
Include the next digit (1) from the dividend after 109, then repeat: 1091 / 686

Going ahead to step 4:
The number 686 fits into 1091 1 times, leaving a remainder of 405.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 686 from 1091 leaves us with 405.
Append the next digit (7) from the dividend to 405 and continue with: 4057 / 686

Let's proceed to step 5:
686 can be fit into 4057 5 times, resulting in a remainder of 627.
Use 5 as the next digit of our solution. 
Result so far: 115.0
If we take 3430 away from 4057, we end up with 627.
Fetch the next digit (5) from the dividend, attach it to 627 and continue: 6275 / 686

Moving on to step 6:
The number 686 fits into 6275 9 times, leaving a remainder of 101.
Use 9 as the next digit of our solution. 
Result so far: 1159.0
Deduct 6174 from 6275 and we're left with 101.
Include the next digit (3) from the dividend after 101, then repeat: 1013 / 686

Going ahead to step 7:
If we divide 1013 by 686, we get 1 and a remainder of 327.
Write down 1 as next digit of the result. 
Result so far: 11591.0
Subtracting 686 from 1013 leaves us with 327.
Fetch the next digit (9) from the dividend, attach it to 327 and continue: 3279 / 686

Let's proceed to step 8:
If we divide 3279 by 686, we get 4 and a remainder of 535.
Record the quotient 4 as the next digit in the result. 
Result so far: 115914.0
Subtract 2744 from 3279 to get 535.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Let's proceed to step 9:
When dividing 5350 by 686, we get 7 with a remainder of 548.
Put 7 as the next digit of the answer. 
Result so far: 115914.7
Subtracting 4802 from 5350 leaves us with 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Going ahead to step 10:
The number 686 fits into 5480 7 times, leaving a remainder of 678.
The number 7 becomes the next digit in our result. 
Result so far: 115914.77
If we subtract 4802 from 5480, we get 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

The final outcome is 115914.77, with a leftover of 0.678.