Let's divide 78909765 by 23
We're looking to find how many times 23 goes into 78909765.

Going ahead to step 1:
The number 23 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 23

Advancing to step 2:
23 can be fit into 78 3 times, resulting in a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 69 from 78, we get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 23

Step 3:
23 can be fit into 99 4 times, resulting in a remainder of 7.
The next digit of our result is 4. 
Result so far: 34.0
Deduct 92 from 99 and we're left with 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 23

On to step 4:
When dividing 70 by 23, we get 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 343.0
Subtracting 69 from 70 leaves us with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 23

Advancing to step 5:
The number 23 fits into 19 0 times, leaving a remainder of 19.
Record the quotient 0 as the next digit in the result. 
Result so far: 3430.0
If we take 0 away from 19, we end up with 19.
Fetch the next digit (7) from the dividend, attach it to 19 and continue: 197 / 23

Let's proceed to step 6:
23 goes into 197 8 times with a remainder of 13.
Put 8 as the next digit of the answer. 
Result so far: 34308.0
The remainder is 13 after subtracting 184 from 197.
Take the next digit (6) from the dividend and append it to 13, then repeat: 136 / 23

Moving on to step 7:
The number 23 fits into 136 5 times, leaving a remainder of 21.
The number 5 becomes the next digit in our result. 
Result so far: 343085.0
Deduct 115 from 136 and we're left with 21.
Fetch the next digit (5) from the dividend, attach it to 21 and continue: 215 / 23

On to step 8:
23 goes into 215 9 times with a remainder of 8.
The number 9 becomes the next digit in our result. 
Result so far: 3430859.0
The remainder is 8 after subtracting 207 from 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
The number 23 fits into 80 3 times, leaving a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 3430859.3
Deduct 69 from 80 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 10:
23 goes into 110 4 times with a remainder of 18.
Record the quotient 4 as the next digit in the result. 
Result so far: 3430859.34
Deduct 92 from 110 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 11:
180 divided by 23 is 7 with a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 3430859.347
The remainder is 19 after subtracting 161 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 12:
If we divide 190 by 23, we get 8 and a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 3430859.3478
If we subtract 184 from 190, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 13:
23 goes into 60 2 times with a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 3430859.34782
If we take 46 away from 60, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 14:
When dividing 140 by 23, we get 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 3430859.347826
Deduct 138 from 140 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 15:
If we divide 20 by 23, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 3430859.347826
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 16:
The number 23 fits into 200 8 times, leaving a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 3430859.34782608
If we take 184 away from 200, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final result is 3430859.34782608 with a remainder of 1.6e-08.