57810421 divided by 478 
Our goal is to divide 57810421 by 478.

Step 1:
5 divided by 478 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 478

On to step 2:
478 can be fit into 57 0 times, resulting in a remainder of 57.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 57, we end up with 57.
Bring next digit (8) of the dividend behind the 57 and repeat the process: 578 / 478

Advancing to step 3:
478 can be fit into 578 1 times, resulting in a remainder of 100.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 478 from 578 to get 100.
Grab the next digit (1) from the dividend, add it to 100, then carry on: 1001 / 478

Moving on to step 4:
If we divide 1001 by 478, we get 2 and a remainder of 45.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 956 from 1001 leaves us with 45.
Bring next digit (0) of the dividend behind the 45 and repeat the process: 450 / 478

Advancing to step 5:
478 can be fit into 450 0 times, resulting in a remainder of 450.
Put 0 as the next digit of the answer. 
Result so far: 120.0
If we take 0 away from 450, we end up with 450.
Take the next digit (4) from the dividend and append it to 450, then repeat: 4504 / 478

Step 6:
4504 divided by 478 is 9 with a remainder of 202.
Record the quotient 9 as the next digit in the result. 
Result so far: 1209.0
The remainder is 202 after subtracting 4302 from 4504.
Append the next digit (2) from the dividend to 202 and continue with: 2022 / 478

On to step 7:
When dividing 2022 by 478, we get 4 with a remainder of 110.
Record the quotient 4 as the next digit in the result. 
Result so far: 12094.0
Subtract 1912 from 2022 to get 110.
Append the next digit (1) from the dividend to 110 and continue with: 1101 / 478

Let's proceed to step 8:
478 can be fit into 1101 2 times, resulting in a remainder of 145.
Use 2 as the next digit of our solution. 
Result so far: 120942.0
If we take 956 away from 1101, we end up with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Advancing to step 9:
When dividing 1450 by 478, we get 3 with a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 120942.3
Subtract 1434 from 1450 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
If we divide 160 by 478, we get 0 and a remainder of 160.
Put 0 as the next digit of the answer. 
Result so far: 120942.3
Subtract 0 from 160 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 11:
The number 478 fits into 1600 3 times, leaving a remainder of 166.
Write down 3 as next digit of the result. 
Result so far: 120942.303
If we subtract 1434 from 1600, we get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Moving on to step 12:
If we divide 1660 by 478, we get 3 and a remainder of 226.
The next digit of our result is 3. 
Result so far: 120942.3033
Subtracting 1434 from 1660 leaves us with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

The final result is 120942.3033 with a remainder of 0.00226.