We look at the division of 3123343 by 45 
Our goal is to divide 3123343 by 45.

On to step 1:
The number 45 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 45

Moving on to step 2:
The number 45 fits into 31 0 times, leaving a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Append the next digit (2) from the dividend to 31 and continue with: 312 / 45

Moving on to step 3:
If we divide 312 by 45, we get 6 and a remainder of 42.
The next digit of our result is 6. 
Result so far: 6.0
The remainder is 42 after subtracting 270 from 312.
Fetch the next digit (3) from the dividend, attach it to 42 and continue: 423 / 45

Moving on to step 4:
45 can be fit into 423 9 times, resulting in a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 69.0
Subtracting 405 from 423 leaves us with 18.
Take the next digit (3) from the dividend and append it to 18, then repeat: 183 / 45

On to step 5:
183 divided by 45 is 4 with a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 694.0
The remainder is 3 after subtracting 180 from 183.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 45

On to step 6:
When dividing 34 by 45, we get 0 with a remainder of 34.
Put 0 as the next digit of the answer. 
Result so far: 6940.0
If we take 0 away from 34, we end up with 34.
Append the next digit (3) from the dividend to 34 and continue with: 343 / 45

On to step 7:
45 can be fit into 343 7 times, resulting in a remainder of 28.
Write down 7 as next digit of the result. 
Result so far: 69407.0
Subtracting 315 from 343 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 8:
The number 45 fits into 280 6 times, leaving a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 69407.6
If we subtract 270 from 280, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
If we divide 100 by 45, we get 2 and a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 69407.62
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 10:
When dividing 100 by 45, we get 2 with a remainder of 10.
The next digit of our result is 2. 
Result so far: 69407.622
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

In conclusion, the division gives 69407.622 with a balance of 0.001.