We're dividing 30436901 by 663 
We want to divide 30436901 by 663.

Going ahead to step 1:
663 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 663

Going ahead to step 2:
If we divide 30 by 663, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Take the next digit (4) from the dividend and append it to 30, then repeat: 304 / 663

Moving on to step 3:
When dividing 304 by 663, we get 0 with a remainder of 304.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 304 to get 304.
Include the next digit (3) from the dividend after 304, then repeat: 3043 / 663

On to step 4:
The number 663 fits into 3043 4 times, leaving a remainder of 391.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 2652 from 3043 to get 391.
Fetch the next digit (6) from the dividend, attach it to 391 and continue: 3916 / 663

Advancing to step 5:
When dividing 3916 by 663, we get 5 with a remainder of 601.
Write down 5 as next digit of the result. 
Result so far: 45.0
Subtract 3315 from 3916 to get 601.
Grab the next digit (9) from the dividend, add it to 601, then carry on: 6019 / 663

Moving on to step 6:
663 goes into 6019 9 times with a remainder of 52.
Record the quotient 9 as the next digit in the result. 
Result so far: 459.0
The remainder is 52 after subtracting 5967 from 6019.
Fetch the next digit (0) from the dividend, attach it to 52 and continue: 520 / 663

Let's proceed to step 7:
The number 663 fits into 520 0 times, leaving a remainder of 520.
Record the quotient 0 as the next digit in the result. 
Result so far: 4590.0
Deduct 0 from 520 and we're left with 520.
Append the next digit (1) from the dividend to 520 and continue with: 5201 / 663

Going ahead to step 8:
5201 divided by 663 is 7 with a remainder of 560.
Record the quotient 7 as the next digit in the result. 
Result so far: 45907.0
Subtracting 4641 from 5201 leaves us with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 9:
663 can be fit into 5600 8 times, resulting in a remainder of 296.
Write down 8 as next digit of the result. 
Result so far: 45907.8
Deduct 5304 from 5600 and we're left with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Going ahead to step 10:
If we divide 2960 by 663, we get 4 and a remainder of 308.
The number 4 becomes the next digit in our result. 
Result so far: 45907.84
Deduct 2652 from 2960 and we're left with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Going ahead to step 11:
The number 663 fits into 3080 4 times, leaving a remainder of 428.
Record the quotient 4 as the next digit in the result. 
Result so far: 45907.844
If we subtract 2652 from 3080, we get 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Our division results in 45907.844 with a remaining 0.0428.