45810476 ÷ 645 
We're looking to find how many times 645 goes into 45810476.

Advancing to step 1:
If we divide 4 by 645, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 645

Step 2:
645 can be fit into 45 0 times, resulting in a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Bring next digit (8) of the dividend behind the 45 and repeat the process: 458 / 645

Step 3:
When dividing 458 by 645, we get 0 with a remainder of 458.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 458, we end up with 458.
Include the next digit (1) from the dividend after 458, then repeat: 4581 / 645

Going ahead to step 4:
When dividing 4581 by 645, we get 7 with a remainder of 66.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 4515 away from 4581, we end up with 66.
Bring next digit (0) of the dividend behind the 66 and repeat the process: 660 / 645

On to step 5:
645 goes into 660 1 times with a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 71.0
If we take 645 away from 660, we end up with 15.
Append the next digit (4) from the dividend to 15 and continue with: 154 / 645

Going ahead to step 6:
154 divided by 645 is 0 with a remainder of 154.
Put 0 as the next digit of the answer. 
Result so far: 710.0
Subtract 0 from 154 to get 154.
Append the next digit (7) from the dividend to 154 and continue with: 1547 / 645

Going ahead to step 7:
The number 645 fits into 1547 2 times, leaving a remainder of 257.
Write down 2 as next digit of the result. 
Result so far: 7102.0
Subtracting 1290 from 1547 leaves us with 257.
Append the next digit (6) from the dividend to 257 and continue with: 2576 / 645

Moving on to step 8:
2576 divided by 645 is 3 with a remainder of 641.
The number 3 becomes the next digit in our result. 
Result so far: 71023.0
If we take 1935 away from 2576, we end up with 641.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6410, and continue the process.

Let's proceed to step 9:
645 goes into 6410 9 times with a remainder of 605.
Write down 9 as next digit of the result. 
Result so far: 71023.9
The remainder is 605 after subtracting 5805 from 6410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6050, and continue the process.

On to step 10:
When dividing 6050 by 645, we get 9 with a remainder of 245.
Use 9 as the next digit of our solution. 
Result so far: 71023.99
If we take 5805 away from 6050, we end up with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

After the division, we end up with 71023.99 and a remainder of 0.245.