Let's divide 903051 by 30
We want to figure out the number of times 903051 can be divided by 30.

Advancing to step 1:
9 divided by 30 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 30

On to step 2:
90 divided by 30 is 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 90 from 90 to get 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 30

On to step 3:
3 divided by 30 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 30

Let's proceed to step 4:
30 goes into 30 1 times with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 301.0
If we subtract 30 from 30, we get 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 30

Step 5:
If we divide 5 by 30, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 3010.0
If we subtract 0 from 5, we get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 30

Advancing to step 6:
51 divided by 30 is 1 with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 30101.0
If we take 30 away from 51, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 7:
When dividing 210 by 30, we get 7 with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 30101.7
If we subtract 210 from 210, 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.

Moving on to step 8:
The number 30 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 30101.7
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.

Step 9:
30 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 30101.7
Subtracting 0 from 0 leaves us 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.

Our division results in 30101.7 with a remaining 0.0.