42124471 ÷ 412 
Our goal is to divide 42124471 by 412.

Step 1:
If we divide 4 by 412, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 412

Step 2:
412 can be fit into 42 0 times, resulting in a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Include the next digit (1) from the dividend after 42, then repeat: 421 / 412

Moving on to step 3:
421 divided by 412 is 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 412 from 421 to get 9.
Bring next digit (2) of the dividend behind the 9 and repeat the process: 92 / 412

Advancing to step 4:
When dividing 92 by 412, we get 0 with a remainder of 92.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 92, we get 92.
Append the next digit (4) from the dividend to 92 and continue with: 924 / 412

Step 5:
412 goes into 924 2 times with a remainder of 100.
Write down 2 as next digit of the result. 
Result so far: 102.0
If we subtract 824 from 924, we get 100.
Include the next digit (4) from the dividend after 100, then repeat: 1004 / 412

Step 6:
412 can be fit into 1004 2 times, resulting in a remainder of 180.
Write down 2 as next digit of the result. 
Result so far: 1022.0
If we subtract 824 from 1004, we get 180.
Bring next digit (7) of the dividend behind the 180 and repeat the process: 1807 / 412

Advancing to step 7:
The number 412 fits into 1807 4 times, leaving a remainder of 159.
Write down 4 as next digit of the result. 
Result so far: 10224.0
If we take 1648 away from 1807, we end up with 159.
Grab the next digit (1) from the dividend, add it to 159, then carry on: 1591 / 412

On to step 8:
When dividing 1591 by 412, we get 3 with a remainder of 355.
Put 3 as the next digit of the answer. 
Result so far: 102243.0
If we subtract 1236 from 1591, we get 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

On to step 9:
The number 412 fits into 3550 8 times, leaving a remainder of 254.
Use 8 as the next digit of our solution. 
Result so far: 102243.8
Subtracting 3296 from 3550 leaves us with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

On to step 10:
When dividing 2540 by 412, we get 6 with a remainder of 68.
The number 6 becomes the next digit in our result. 
Result so far: 102243.86
Subtracting 2472 from 2540 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 11:
412 goes into 680 1 times with a remainder of 268.
Write down 1 as next digit of the result. 
Result so far: 102243.861
The remainder is 268 after subtracting 412 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

On to step 12:
412 goes into 2680 6 times with a remainder of 208.
The number 6 becomes the next digit in our result. 
Result so far: 102243.8616
Deduct 2472 from 2680 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

On to step 13:
When dividing 2080 by 412, we get 5 with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 102243.86165
Subtracting 2060 from 2080 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 14:
200 divided by 412 is 0 with a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 102243.86165
Subtract 0 from 200 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 15:
When dividing 2000 by 412, we get 4 with a remainder of 352.
The next digit of our result is 4. 
Result so far: 102243.8616504
Deduct 1648 from 2000 and we're left with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Let's proceed to step 16:
3520 divided by 412 is 8 with a remainder of 224.
Put 8 as the next digit of the answer. 
Result so far: 102243.86165048
The remainder is 224 after subtracting 3296 from 3520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

The final outcome is 102243.86165048, with a leftover of 2.24e-07.