428619 divided by 23 
We want to figure out the number of times 428619 can be divided by 23.

On to step 1:
The number 23 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 23

On to step 2:
23 goes into 42 1 times with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 23 from 42, we get 19.
Take the next digit (8) from the dividend and append it to 19, then repeat: 198 / 23

Step 3:
When dividing 198 by 23, we get 8 with a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtract 184 from 198 to get 14.
Include the next digit (6) from the dividend after 14, then repeat: 146 / 23

Let's proceed to step 4:
23 goes into 146 6 times with a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 186.0
If we subtract 138 from 146, we get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 23

Moving on to step 5:
81 divided by 23 is 3 with a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 1863.0
Subtracting 69 from 81 leaves us with 12.
Fetch the next digit (9) from the dividend, attach it to 12 and continue: 129 / 23

On to step 6:
The number 23 fits into 129 5 times, leaving a remainder of 14.
Use 5 as the next digit of our solution. 
Result so far: 18635.0
The remainder is 14 after subtracting 115 from 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 7:
The number 23 fits into 140 6 times, leaving a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 18635.6
If we take 138 away from 140, we end up 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.

Let's proceed to step 8:
23 can be fit into 20 0 times, resulting in a remainder of 20.
The next digit of our result is 0. 
Result so far: 18635.6
Subtracting 0 from 20 leaves us 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.

Advancing to step 9:
23 can be fit into 200 8 times, resulting in a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 18635.608
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.

Moving on to step 10:
23 goes into 160 6 times with a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 18635.6086
Subtracting 138 from 160 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 11:
220 divided by 23 is 9 with a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 18635.60869
The remainder is 13 after subtracting 207 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 12:
130 divided by 23 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 18635.608695
Subtracting 115 from 130 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 13:
23 goes into 150 6 times with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 18635.6086956
Subtracting 138 from 150 leaves us 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.

Going ahead to step 14:
23 goes into 120 5 times with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 18635.60869565
Subtracting 115 from 120 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 18635.60869565, with a leftover of 5e-09.