We look at the division of 75639 by 12 
We want to figure out the number of times 75639 can be divided by 12.

Advancing to step 1:
12 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 12

Advancing to step 2:
75 divided by 12 is 6 with a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 72 from 75 and we're left with 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 12

Advancing to step 3:
When dividing 36 by 12, we get 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 63.0
Deduct 36 from 36 and we're left with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 12

On to step 4:
12 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 630.0
If we subtract 0 from 3, we get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 12

Advancing to step 5:
When dividing 39 by 12, we get 3 with a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 6303.0
If we subtract 36 from 39, we get 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:
12 can be fit into 30 2 times, resulting in a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 6303.2
The remainder is 6 after subtracting 24 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 7:
60 divided by 12 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 6303.25
The remainder is 0 after subtracting 60 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
When dividing 0 by 12, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 6303.25
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
When dividing 0 by 12, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 6303.25
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 6303.25, and the remainder is 0.0.