Let's divide 78089918 by 666
We want to divide 78089918 by 666.

Moving on to step 1:
666 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 666

Moving on to step 2:
78 divided by 666 is 0 with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Include the next digit (0) from the dividend after 78, then repeat: 780 / 666

Going ahead to step 3:
The number 666 fits into 780 1 times, leaving a remainder of 114.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 114 after subtracting 666 from 780.
Include the next digit (8) from the dividend after 114, then repeat: 1148 / 666

Step 4:
666 can be fit into 1148 1 times, resulting in a remainder of 482.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtracting 666 from 1148 leaves us with 482.
Fetch the next digit (9) from the dividend, attach it to 482 and continue: 4829 / 666

Advancing to step 5:
4829 divided by 666 is 7 with a remainder of 167.
The number 7 becomes the next digit in our result. 
Result so far: 117.0
If we subtract 4662 from 4829, we get 167.
Take the next digit (9) from the dividend and append it to 167, then repeat: 1679 / 666

Step 6:
666 goes into 1679 2 times with a remainder of 347.
The next digit of our result is 2. 
Result so far: 1172.0
The remainder is 347 after subtracting 1332 from 1679.
Take the next digit (1) from the dividend and append it to 347, then repeat: 3471 / 666

On to step 7:
3471 divided by 666 is 5 with a remainder of 141.
The number 5 becomes the next digit in our result. 
Result so far: 11725.0
If we take 3330 away from 3471, we end up with 141.
Append the next digit (8) from the dividend to 141 and continue with: 1418 / 666

Going ahead to step 8:
If we divide 1418 by 666, we get 2 and a remainder of 86.
Write down 2 as next digit of the result. 
Result so far: 117252.0
If we take 1332 away from 1418, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 9:
When dividing 860 by 666, we get 1 with a remainder of 194.
The next digit of our result is 1. 
Result so far: 117252.1
Subtracting 666 from 860 leaves us with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Step 10:
When dividing 1940 by 666, we get 2 with a remainder of 608.
Put 2 as the next digit of the answer. 
Result so far: 117252.12
If we subtract 1332 from 1940, we get 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Moving on to step 11:
666 can be fit into 6080 9 times, resulting in a remainder of 86.
Record the quotient 9 as the next digit in the result. 
Result so far: 117252.129
The remainder is 86 after subtracting 5994 from 6080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 12:
The number 666 fits into 860 1 times, leaving a remainder of 194.
Record the quotient 1 as the next digit in the result. 
Result so far: 117252.1291
Deduct 666 from 860 and we're left with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Going ahead to step 13:
666 goes into 1940 2 times with a remainder of 608.
The number 2 becomes the next digit in our result. 
Result so far: 117252.12912
Subtract 1332 from 1940 to get 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Going ahead to step 14:
The number 666 fits into 6080 9 times, leaving a remainder of 86.
Record the quotient 9 as the next digit in the result. 
Result so far: 117252.129129
Subtract 5994 from 6080 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Moving on to step 15:
If we divide 860 by 666, we get 1 and a remainder of 194.
The number 1 becomes the next digit in our result. 
Result so far: 117252.1291291
Subtracting 666 from 860 leaves us with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Moving on to step 16:
The number 666 fits into 1940 2 times, leaving a remainder of 608.
The number 2 becomes the next digit in our result. 
Result so far: 117252.12912912
Deduct 1332 from 1940 and we're left with 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

The final result is 117252.12912912 with a remainder of 6.08e-07.