438903 ÷ 17 
We want to figure out the number of times 438903 can be divided by 17.

Moving on to step 1:
The number 17 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 17

On to step 2:
When dividing 43 by 17, we get 2 with a remainder of 9.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 9 after subtracting 34 from 43.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 17

Going ahead to step 3:
When dividing 98 by 17, we get 5 with a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
If we subtract 85 from 98, we get 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 17

Going ahead to step 4:
The number 17 fits into 139 8 times, leaving a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 258.0
If we take 136 away from 139, we end up with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 17

Let's proceed to step 5:
17 can be fit into 30 1 times, resulting in a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 2581.0
Deduct 17 from 30 and we're left with 13.
Grab the next digit (3) from the dividend, add it to 13, then carry on: 133 / 17

Advancing to step 6:
133 divided by 17 is 7 with a remainder of 14.
The number 7 becomes the next digit in our result. 
Result so far: 25817.0
If we take 119 away from 133, 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.

Let's proceed to step 7:
17 can be fit into 140 8 times, resulting in a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 25817.8
If we subtract 136 from 140, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 8:
When dividing 40 by 17, we get 2 with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 25817.82
The remainder is 6 after subtracting 34 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 9:
60 divided by 17 is 3 with a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 25817.823
If we subtract 51 from 60, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 10:
17 goes into 90 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 25817.8235
The remainder is 5 after subtracting 85 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 11:
17 goes into 50 2 times with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 25817.82352
Subtract 34 from 50 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 12:
The number 17 fits into 160 9 times, leaving a remainder of 7.
The number 9 becomes the next digit in our result. 
Result so far: 25817.823529
The remainder is 7 after subtracting 153 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 13:
17 goes into 70 4 times with a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 25817.8235294
Subtracting 68 from 70 leaves us 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.

Advancing to step 14:
When dividing 20 by 17, we get 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 25817.82352941
Deduct 17 from 20 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final outcome is 25817.82352941, with a leftover of 3e-09.