351253 ÷ 45 
Let's see how many times 45 fits into 351253.

Let's proceed to step 1:
3 divided by 45 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 45

On to step 2:
If we divide 35 by 45, we get 0 and a remainder of 35.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 35 after subtracting 0 from 35.
Bring next digit (1) of the dividend behind the 35 and repeat the process: 351 / 45

Let's proceed to step 3:
When dividing 351 by 45, we get 7 with a remainder of 36.
The next digit of our result is 7. 
Result so far: 7.0
If we take 315 away from 351, we end up with 36.
Include the next digit (2) from the dividend after 36, then repeat: 362 / 45

Let's proceed to step 4:
When dividing 362 by 45, we get 8 with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Subtracting 360 from 362 leaves us with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 45

Let's proceed to step 5:
When dividing 25 by 45, we get 0 with a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 780.0
Subtract 0 from 25 to get 25.
Include the next digit (3) from the dividend after 25, then repeat: 253 / 45

Let's proceed to step 6:
45 goes into 253 5 times with a remainder of 28.
Use 5 as the next digit of our solution. 
Result so far: 7805.0
If we take 225 away from 253, we end up 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 7:
45 goes into 280 6 times with a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 7805.6
Subtract 270 from 280 to 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.

Going ahead to step 8:
45 can be fit into 100 2 times, resulting in a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 7805.62
If we take 90 away from 100, we end up 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.

Moving on to step 9:
When dividing 100 by 45, we get 2 with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 7805.622
Subtracting 90 from 100 leaves us 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.

After the division, we end up with 7805.622 and a remainder of 0.001.