78043640 divided by 999 
Our goal is to divide 78043640 by 999.

Going ahead to step 1:
If we divide 7 by 999, we get 0 and 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.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 999

Advancing to step 2:
When dividing 78 by 999, we get 0 with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Grab the next digit (0) from the dividend, add it to 78, then carry on: 780 / 999

Let's proceed to step 3:
780 divided by 999 is 0 with a remainder of 780.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 780 leaves us with 780.
Include the next digit (4) from the dividend after 780, then repeat: 7804 / 999

Step 4:
If we divide 7804 by 999, we get 7 and a remainder of 811.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtracting 6993 from 7804 leaves us with 811.
Bring next digit (3) of the dividend behind the 811 and repeat the process: 8113 / 999

Going ahead to step 5:
When dividing 8113 by 999, we get 8 with a remainder of 121.
Record the quotient 8 as the next digit in the result. 
Result so far: 78.0
Subtract 7992 from 8113 to get 121.
Take the next digit (6) from the dividend and append it to 121, then repeat: 1216 / 999

Moving on to step 6:
When dividing 1216 by 999, we get 1 with a remainder of 217.
The number 1 becomes the next digit in our result. 
Result so far: 781.0
Subtracting 999 from 1216 leaves us with 217.
Take the next digit (4) from the dividend and append it to 217, then repeat: 2174 / 999

Going ahead to step 7:
2174 divided by 999 is 2 with a remainder of 176.
Record the quotient 2 as the next digit in the result. 
Result so far: 7812.0
If we take 1998 away from 2174, we end up with 176.
Bring next digit (0) of the dividend behind the 176 and repeat the process: 1760 / 999

Moving on to step 8:
The number 999 fits into 1760 1 times, leaving a remainder of 761.
Put 1 as the next digit of the answer. 
Result so far: 78121.0
Deduct 999 from 1760 and we're left with 761.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7610, and continue the process.

Moving on to step 9:
When dividing 7610 by 999, we get 7 with a remainder of 617.
Write down 7 as next digit of the result. 
Result so far: 78121.7
Subtract 6993 from 7610 to get 617.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6170, and continue the process.

Going ahead to step 10:
6170 divided by 999 is 6 with a remainder of 176.
Record the quotient 6 as the next digit in the result. 
Result so far: 78121.76
Subtract 5994 from 6170 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Step 11:
The number 999 fits into 1760 1 times, leaving a remainder of 761.
Record the quotient 1 as the next digit in the result. 
Result so far: 78121.761
If we subtract 999 from 1760, we get 761.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7610, and continue the process.

Let's proceed to step 12:
999 goes into 7610 7 times with a remainder of 617.
Record the quotient 7 as the next digit in the result. 
Result so far: 78121.7617
Deduct 6993 from 7610 and we're left with 617.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6170, and continue the process.

Step 13:
6170 divided by 999 is 6 with a remainder of 176.
Use 6 as the next digit of our solution. 
Result so far: 78121.76176
The remainder is 176 after subtracting 5994 from 6170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 14:
999 goes into 1760 1 times with a remainder of 761.
Write down 1 as next digit of the result. 
Result so far: 78121.761761
The remainder is 761 after subtracting 999 from 1760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7610, and continue the process.

Going ahead to step 15:
The number 999 fits into 7610 7 times, leaving a remainder of 617.
Put 7 as the next digit of the answer. 
Result so far: 78121.7617617
The remainder is 617 after subtracting 6993 from 7610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6170, and continue the process.

On to step 16:
6170 divided by 999 is 6 with a remainder of 176.
Use 6 as the next digit of our solution. 
Result so far: 78121.76176176
Subtract 5994 from 6170 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

After the division, we end up with 78121.76176176 and a remainder of 1.76e-07.