We're dividing 87750645 by 398 
We want to divide 87750645 by 398.

Step 1:
398 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 398

Let's proceed to step 2:
87 divided by 398 is 0 with a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 87 and we're left with 87.
Include the next digit (7) from the dividend after 87, then repeat: 877 / 398

On to step 3:
When dividing 877 by 398, we get 2 with a remainder of 81.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 796 from 877, we get 81.
Fetch the next digit (5) from the dividend, attach it to 81 and continue: 815 / 398

Step 4:
815 divided by 398 is 2 with a remainder of 19.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
Subtract 796 from 815 to get 19.
Grab the next digit (0) from the dividend, add it to 19, then carry on: 190 / 398

On to step 5:
190 divided by 398 is 0 with a remainder of 190.
Use 0 as the next digit of our solution. 
Result so far: 220.0
The remainder is 190 after subtracting 0 from 190.
Grab the next digit (6) from the dividend, add it to 190, then carry on: 1906 / 398

Moving on to step 6:
When dividing 1906 by 398, we get 4 with a remainder of 314.
Use 4 as the next digit of our solution. 
Result so far: 2204.0
Deduct 1592 from 1906 and we're left with 314.
Bring next digit (4) of the dividend behind the 314 and repeat the process: 3144 / 398

Let's proceed to step 7:
3144 divided by 398 is 7 with a remainder of 358.
Use 7 as the next digit of our solution. 
Result so far: 22047.0
Subtracting 2786 from 3144 leaves us with 358.
Take the next digit (5) from the dividend and append it to 358, then repeat: 3585 / 398

On to step 8:
3585 divided by 398 is 9 with a remainder of 3.
The next digit of our result is 9. 
Result so far: 220479.0
Subtract 3582 from 3585 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 9:
398 can be fit into 30 0 times, resulting in a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 220479.0
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 10:
398 can be fit into 300 0 times, resulting in a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 220479.0
Deduct 0 from 300 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The final outcome is 220479.0, with a leftover of 0.3.