62398886 ÷ 645 
Let's see how many times 645 fits into 62398886.

On to step 1:
6 divided by 645 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 645

On to step 2:
When dividing 62 by 645, we get 0 with a remainder of 62.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 62 to get 62.
Take the next digit (3) from the dividend and append it to 62, then repeat: 623 / 645

Moving on to step 3:
645 can be fit into 623 0 times, resulting in a remainder of 623.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 623 leaves us with 623.
Fetch the next digit (9) from the dividend, attach it to 623 and continue: 6239 / 645

Moving on to step 4:
If we divide 6239 by 645, we get 9 and a remainder of 434.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 5805 from 6239, we get 434.
Append the next digit (8) from the dividend to 434 and continue with: 4348 / 645

Step 5:
When dividing 4348 by 645, we get 6 with a remainder of 478.
Record the quotient 6 as the next digit in the result. 
Result so far: 96.0
If we subtract 3870 from 4348, we get 478.
Fetch the next digit (8) from the dividend, attach it to 478 and continue: 4788 / 645

Advancing to step 6:
645 goes into 4788 7 times with a remainder of 273.
Use 7 as the next digit of our solution. 
Result so far: 967.0
Subtracting 4515 from 4788 leaves us with 273.
Include the next digit (8) from the dividend after 273, then repeat: 2738 / 645

On to step 7:
If we divide 2738 by 645, we get 4 and a remainder of 158.
The next digit of our result is 4. 
Result so far: 9674.0
If we subtract 2580 from 2738, we get 158.
Take the next digit (6) from the dividend and append it to 158, then repeat: 1586 / 645

Step 8:
1586 divided by 645 is 2 with a remainder of 296.
The next digit of our result is 2. 
Result so far: 96742.0
Subtracting 1290 from 1586 leaves us 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.

Let's proceed to step 9:
645 goes into 2960 4 times with a remainder of 380.
Record the quotient 4 as the next digit in the result. 
Result so far: 96742.4
If we take 2580 away from 2960, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Step 10:
645 can be fit into 3800 5 times, resulting in a remainder of 575.
The number 5 becomes the next digit in our result. 
Result so far: 96742.45
Subtract 3225 from 3800 to get 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

On to step 11:
645 can be fit into 5750 8 times, resulting in a remainder of 590.
The next digit of our result is 8. 
Result so far: 96742.458
Deduct 5160 from 5750 and we're left with 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Moving on to step 12:
If we divide 5900 by 645, we get 9 and a remainder of 95.
The next digit of our result is 9. 
Result so far: 96742.4589
Subtract 5805 from 5900 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Going ahead to step 13:
If we divide 950 by 645, we get 1 and a remainder of 305.
Use 1 as the next digit of our solution. 
Result so far: 96742.45891
Deduct 645 from 950 and we're left with 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Let's proceed to step 14:
645 can be fit into 3050 4 times, resulting in a remainder of 470.
Write down 4 as next digit of the result. 
Result so far: 96742.458914
If we subtract 2580 from 3050, we get 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Moving on to step 15:
The number 645 fits into 4700 7 times, leaving a remainder of 185.
Put 7 as the next digit of the answer. 
Result so far: 96742.4589147
If we subtract 4515 from 4700, we get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Step 16:
645 goes into 1850 2 times with a remainder of 560.
Record the quotient 2 as the next digit in the result. 
Result so far: 96742.45891472
If we take 1290 away from 1850, we end up 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.

The final result is 96742.45891472 with a remainder of 5.6e-07.