We're dividing 859423 by 25 
We want to figure out the number of times 859423 can be divided by 25.

Let's proceed to step 1:
8 divided by 25 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 25

Going ahead to step 2:
25 goes into 85 3 times with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 75 from 85 to get 10.
Take the next digit (9) from the dividend and append it to 10, then repeat: 109 / 25

On to step 3:
25 can be fit into 109 4 times, resulting in a remainder of 9.
Record the quotient 4 as the next digit in the result. 
Result so far: 34.0
If we take 100 away from 109, we end up with 9.
Bring next digit (4) of the dividend behind the 9 and repeat the process: 94 / 25

Let's proceed to step 4:
When dividing 94 by 25, we get 3 with a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 343.0
If we take 75 away from 94, we end up with 19.
Grab the next digit (2) from the dividend, add it to 19, then carry on: 192 / 25

Let's proceed to step 5:
192 divided by 25 is 7 with a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 3437.0
If we subtract 175 from 192, we get 17.
Grab the next digit (3) from the dividend, add it to 17, then carry on: 173 / 25

Going ahead to step 6:
25 can be fit into 173 6 times, resulting in a remainder of 23.
The next digit of our result is 6. 
Result so far: 34376.0
The remainder is 23 after subtracting 150 from 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 7:
When dividing 230 by 25, we get 9 with a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 34376.9
The remainder is 5 after subtracting 225 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 8:
25 goes into 50 2 times with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 34376.92
Deduct 50 from 50 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
25 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 34376.92
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
0 divided by 25 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 34376.92
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 34376.92, with a leftover of 0.0.