We're dividing 51223438 by 412 
We want to divide 51223438 by 412.

Let's proceed to step 1:
5 divided by 412 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 412

Let's proceed to step 2:
412 can be fit into 51 0 times, resulting in a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Take the next digit (2) from the dividend and append it to 51, then repeat: 512 / 412

Moving on to step 3:
512 divided by 412 is 1 with a remainder of 100.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 100 after subtracting 412 from 512.
Take the next digit (2) from the dividend and append it to 100, then repeat: 1002 / 412

Step 4:
When dividing 1002 by 412, we get 2 with a remainder of 178.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 824 from 1002 leaves us with 178.
Fetch the next digit (3) from the dividend, attach it to 178 and continue: 1783 / 412

Moving on to step 5:
1783 divided by 412 is 4 with a remainder of 135.
Use 4 as the next digit of our solution. 
Result so far: 124.0
The remainder is 135 after subtracting 1648 from 1783.
Include the next digit (4) from the dividend after 135, then repeat: 1354 / 412

Moving on to step 6:
1354 divided by 412 is 3 with a remainder of 118.
Put 3 as the next digit of the answer. 
Result so far: 1243.0
Subtract 1236 from 1354 to get 118.
Fetch the next digit (3) from the dividend, attach it to 118 and continue: 1183 / 412

Let's proceed to step 7:
1183 divided by 412 is 2 with a remainder of 359.
The number 2 becomes the next digit in our result. 
Result so far: 12432.0
Subtract 824 from 1183 to get 359.
Take the next digit (8) from the dividend and append it to 359, then repeat: 3598 / 412

Moving on to step 8:
The number 412 fits into 3598 8 times, leaving a remainder of 302.
Put 8 as the next digit of the answer. 
Result so far: 124328.0
Subtracting 3296 from 3598 leaves us with 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Going ahead to step 9:
412 goes into 3020 7 times with a remainder of 136.
The next digit of our result is 7. 
Result so far: 124328.7
The remainder is 136 after subtracting 2884 from 3020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 10:
The number 412 fits into 1360 3 times, leaving a remainder of 124.
The next digit of our result is 3. 
Result so far: 124328.73
Subtract 1236 from 1360 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 11:
1240 divided by 412 is 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 124328.733
Subtract 1236 from 1240 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 124328.733, and the remainder is 0.0004.