We look at the division of 621437 by 50 
We want to divide 621437 by 50.

On to step 1:
When dividing 6 by 50, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 50

Let's proceed to step 2:
50 goes into 62 1 times with a remainder of 12.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 50 from 62 leaves us with 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 50

Going ahead to step 3:
When dividing 121 by 50, we get 2 with a remainder of 21.
The next digit of our result is 2. 
Result so far: 12.0
If we subtract 100 from 121, we get 21.
Take the next digit (4) from the dividend and append it to 21, then repeat: 214 / 50

Going ahead to step 4:
When dividing 214 by 50, we get 4 with a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 124.0
Subtracting 200 from 214 leaves us with 14.
Grab the next digit (3) from the dividend, add it to 14, then carry on: 143 / 50

Let's proceed to step 5:
50 goes into 143 2 times with a remainder of 43.
Use 2 as the next digit of our solution. 
Result so far: 1242.0
Subtract 100 from 143 to get 43.
Bring next digit (7) of the dividend behind the 43 and repeat the process: 437 / 50

Advancing to step 6:
If we divide 437 by 50, we get 8 and a remainder of 37.
Use 8 as the next digit of our solution. 
Result so far: 12428.0
Subtracting 400 from 437 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 7:
If we divide 370 by 50, we get 7 and a remainder of 20.
The next digit of our result is 7. 
Result so far: 12428.7
If we subtract 350 from 370, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
If we divide 200 by 50, we get 4 and a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 12428.74
If we subtract 200 from 200, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
When dividing 0 by 50, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 12428.74
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
When dividing 0 by 50, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 12428.74
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 12428.74 with a remaining 0.0.