78785003 ÷ 166 
We want to divide 78785003 by 166.

Moving on to step 1:
7 divided by 166 is 0 with a remainder of 7.
The next digit of our result is 0. 
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 / 166

Let's proceed to step 2:
If we divide 78 by 166, we get 0 and a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Append the next digit (7) from the dividend to 78 and continue with: 787 / 166

Step 3:
If we divide 787 by 166, we get 4 and a remainder of 123.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 664 from 787, we get 123.
Fetch the next digit (8) from the dividend, attach it to 123 and continue: 1238 / 166

Moving on to step 4:
If we divide 1238 by 166, we get 7 and a remainder of 76.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
Subtracting 1162 from 1238 leaves us with 76.
Take the next digit (5) from the dividend and append it to 76, then repeat: 765 / 166

On to step 5:
If we divide 765 by 166, we get 4 and a remainder of 101.
Use 4 as the next digit of our solution. 
Result so far: 474.0
If we subtract 664 from 765, we get 101.
Take the next digit (0) from the dividend and append it to 101, then repeat: 1010 / 166

Moving on to step 6:
1010 divided by 166 is 6 with a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 4746.0
If we subtract 996 from 1010, we get 14.
Fetch the next digit (0) from the dividend, attach it to 14 and continue: 140 / 166

Moving on to step 7:
140 divided by 166 is 0 with a remainder of 140.
Record the quotient 0 as the next digit in the result. 
Result so far: 47460.0
If we take 0 away from 140, we end up with 140.
Append the next digit (3) from the dividend to 140 and continue with: 1403 / 166

Step 8:
166 can be fit into 1403 8 times, resulting in a remainder of 75.
Record the quotient 8 as the next digit in the result. 
Result so far: 474608.0
The remainder is 75 after subtracting 1328 from 1403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 9:
166 goes into 750 4 times with a remainder of 86.
Record the quotient 4 as the next digit in the result. 
Result so far: 474608.4
The remainder is 86 after subtracting 664 from 750.
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 10:
166 can be fit into 860 5 times, resulting in a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 474608.45
Subtract 830 from 860 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 11:
166 goes into 300 1 times with a remainder of 134.
Write down 1 as next digit of the result. 
Result so far: 474608.451
Deduct 166 from 300 and we're left with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

On to step 12:
When dividing 1340 by 166, we get 8 with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 474608.4518
Deduct 1328 from 1340 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 13:
166 goes into 120 0 times with a remainder of 120.
The number 0 becomes the next digit in our result. 
Result so far: 474608.4518
Subtract 0 from 120 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 14:
If we divide 1200 by 166, we get 7 and a remainder of 38.
The next digit of our result is 7. 
Result so far: 474608.451807
If we subtract 1162 from 1200, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 15:
When dividing 380 by 166, we get 2 with a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 474608.4518072
Deduct 332 from 380 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 16:
166 can be fit into 480 2 times, resulting in a remainder of 148.
Put 2 as the next digit of the answer. 
Result so far: 474608.45180722
Subtract 332 from 480 to get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Our division results in 474608.45180722 with a remaining 1.48e-07.