We're dividing 290123 by 45 
Our goal is to divide 290123 by 45.

Advancing to step 1:
45 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 45

Step 2:
45 goes into 29 0 times with a remainder of 29.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 29 to get 29.
Append the next digit (0) from the dividend to 29 and continue with: 290 / 45

Moving on to step 3:
45 can be fit into 290 6 times, resulting in a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 270 from 290 to get 20.
Take the next digit (1) from the dividend and append it to 20, then repeat: 201 / 45

Advancing to step 4:
The number 45 fits into 201 4 times, leaving a remainder of 21.
Use 4 as the next digit of our solution. 
Result so far: 64.0
Subtracting 180 from 201 leaves us with 21.
Grab the next digit (2) from the dividend, add it to 21, then carry on: 212 / 45

Moving on to step 5:
45 can be fit into 212 4 times, resulting in a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 644.0
Subtract 180 from 212 to get 32.
Grab the next digit (3) from the dividend, add it to 32, then carry on: 323 / 45

Going ahead to step 6:
323 divided by 45 is 7 with a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 6447.0
If we take 315 away from 323, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 7:
When dividing 80 by 45, we get 1 with a remainder of 35.
Record the quotient 1 as the next digit in the result. 
Result so far: 6447.1
Deduct 45 from 80 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 8:
45 can be fit into 350 7 times, resulting in a remainder of 35.
Record the quotient 7 as the next digit in the result. 
Result so far: 6447.17
The remainder is 35 after subtracting 315 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 9:
The number 45 fits into 350 7 times, leaving a remainder of 35.
Write down 7 as next digit of the result. 
Result so far: 6447.177
Subtract 315 from 350 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

After the division, we end up with 6447.177 and a remainder of 0.0035.