Let's divide 78720346 by 217
Our goal is to divide 78720346 by 217.

On to step 1:
The number 217 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 217

On to step 2:
When dividing 78 by 217, we get 0 with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Bring next digit (7) of the dividend behind the 78 and repeat the process: 787 / 217

Let's proceed to step 3:
217 goes into 787 3 times with a remainder of 136.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 651 from 787, we get 136.
Bring next digit (2) of the dividend behind the 136 and repeat the process: 1362 / 217

On to step 4:
1362 divided by 217 is 6 with a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
Subtract 1302 from 1362 to get 60.
Fetch the next digit (0) from the dividend, attach it to 60 and continue: 600 / 217

Moving on to step 5:
If we divide 600 by 217, we get 2 and a remainder of 166.
Put 2 as the next digit of the answer. 
Result so far: 362.0
If we subtract 434 from 600, we get 166.
Fetch the next digit (3) from the dividend, attach it to 166 and continue: 1663 / 217

Advancing to step 6:
When dividing 1663 by 217, we get 7 with a remainder of 144.
Put 7 as the next digit of the answer. 
Result so far: 3627.0
Deduct 1519 from 1663 and we're left with 144.
Fetch the next digit (4) from the dividend, attach it to 144 and continue: 1444 / 217

Advancing to step 7:
The number 217 fits into 1444 6 times, leaving a remainder of 142.
The number 6 becomes the next digit in our result. 
Result so far: 36276.0
If we subtract 1302 from 1444, we get 142.
Append the next digit (6) from the dividend to 142 and continue with: 1426 / 217

On to step 8:
If we divide 1426 by 217, we get 6 and a remainder of 124.
The number 6 becomes the next digit in our result. 
Result so far: 362766.0
The remainder is 124 after subtracting 1302 from 1426.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 9:
If we divide 1240 by 217, we get 5 and a remainder of 155.
Record the quotient 5 as the next digit in the result. 
Result so far: 362766.5
Subtracting 1085 from 1240 leaves us with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Moving on to step 10:
If we divide 1550 by 217, we get 7 and a remainder of 31.
Use 7 as the next digit of our solution. 
Result so far: 362766.57
Deduct 1519 from 1550 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 11:
If we divide 310 by 217, we get 1 and a remainder of 93.
Put 1 as the next digit of the answer. 
Result so far: 362766.571
Subtracting 217 from 310 leaves us with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Going ahead to step 12:
If we divide 930 by 217, we get 4 and a remainder of 62.
The next digit of our result is 4. 
Result so far: 362766.5714
Deduct 868 from 930 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 13:
620 divided by 217 is 2 with a remainder of 186.
Write down 2 as next digit of the result. 
Result so far: 362766.57142
Deduct 434 from 620 and we're left with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Step 14:
If we divide 1860 by 217, we get 8 and a remainder of 124.
Use 8 as the next digit of our solution. 
Result so far: 362766.571428
Subtract 1736 from 1860 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Moving on to step 15:
217 can be fit into 1240 5 times, resulting in a remainder of 155.
The next digit of our result is 5. 
Result so far: 362766.5714285
If we take 1085 away from 1240, we end up with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Advancing to step 16:
When dividing 1550 by 217, we get 7 with a remainder of 31.
The number 7 becomes the next digit in our result. 
Result so far: 362766.57142857
If we subtract 1519 from 1550, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Our division results in 362766.57142857 with a remaining 3.1e-08.