Let's divide 50407152 by 421
We want to figure out the number of times 50407152 can be divided by 421.

Step 1:
5 divided by 421 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.
Append the next digit (0) from the dividend to 5 and continue with: 50 / 421

Step 2:
421 goes into 50 0 times with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 50 after subtracting 0 from 50.
Take the next digit (4) from the dividend and append it to 50, then repeat: 504 / 421

Moving on to step 3:
The number 421 fits into 504 1 times, leaving a remainder of 83.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 421 from 504, we get 83.
Grab the next digit (0) from the dividend, add it to 83, then carry on: 830 / 421

Moving on to step 4:
830 divided by 421 is 1 with a remainder of 409.
The next digit of our result is 1. 
Result so far: 11.0
The remainder is 409 after subtracting 421 from 830.
Fetch the next digit (7) from the dividend, attach it to 409 and continue: 4097 / 421

On to step 5:
421 goes into 4097 9 times with a remainder of 308.
Write down 9 as next digit of the result. 
Result so far: 119.0
Deduct 3789 from 4097 and we're left with 308.
Append the next digit (1) from the dividend to 308 and continue with: 3081 / 421

Going ahead to step 6:
421 can be fit into 3081 7 times, resulting in a remainder of 134.
Put 7 as the next digit of the answer. 
Result so far: 1197.0
If we take 2947 away from 3081, we end up with 134.
Bring next digit (5) of the dividend behind the 134 and repeat the process: 1345 / 421

Let's proceed to step 7:
When dividing 1345 by 421, we get 3 with a remainder of 82.
The next digit of our result is 3. 
Result so far: 11973.0
The remainder is 82 after subtracting 1263 from 1345.
Append the next digit (2) from the dividend to 82 and continue with: 822 / 421

Moving on to step 8:
When dividing 822 by 421, we get 1 with a remainder of 401.
Use 1 as the next digit of our solution. 
Result so far: 119731.0
Subtract 421 from 822 to get 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Moving on to step 9:
421 can be fit into 4010 9 times, resulting in a remainder of 221.
The next digit of our result is 9. 
Result so far: 119731.9
If we subtract 3789 from 4010, we get 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

On to step 10:
If we divide 2210 by 421, we get 5 and a remainder of 105.
The number 5 becomes the next digit in our result. 
Result so far: 119731.95
If we subtract 2105 from 2210, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Moving on to step 11:
If we divide 1050 by 421, we get 2 and a remainder of 208.
Use 2 as the next digit of our solution. 
Result so far: 119731.952
If we take 842 away from 1050, we end up 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.

Let's proceed to step 12:
421 can be fit into 2080 4 times, resulting in a remainder of 396.
The number 4 becomes the next digit in our result. 
Result so far: 119731.9524
Subtracting 1684 from 2080 leaves us with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

On to step 13:
When dividing 3960 by 421, we get 9 with a remainder of 171.
The number 9 becomes the next digit in our result. 
Result so far: 119731.95249
Deduct 3789 from 3960 and we're left with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Moving on to step 14:
When dividing 1710 by 421, we get 4 with a remainder of 26.
The next digit of our result is 4. 
Result so far: 119731.952494
If we take 1684 away from 1710, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 15:
If we divide 260 by 421, we get 0 and a remainder of 260.
Record the quotient 0 as the next digit in the result. 
Result so far: 119731.952494
Subtract 0 from 260 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 16:
421 goes into 2600 6 times with a remainder of 74.
The number 6 becomes the next digit in our result. 
Result so far: 119731.95249406
Deduct 2526 from 2600 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

The final outcome is 119731.95249406, with a leftover of 7.4e-08.