621044 divided by 4 
Let's see how many times 4 fits into 621044.

Going ahead to step 1:
If we divide 6 by 4, we get 1 and a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 4 from 6 leaves us with 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 4

Moving on to step 2:
22 divided by 4 is 5 with a remainder of 2.
Write down 5 as next digit of the result. 
Result so far: 15.0
Deduct 20 from 22 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 4

On to step 3:
When dividing 21 by 4, we get 5 with a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 155.0
The remainder is 1 after subtracting 20 from 21.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 4

Advancing to step 4:
When dividing 10 by 4, we get 2 with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 1552.0
If we subtract 8 from 10, we get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 4

Advancing to step 5:
If we divide 24 by 4, we get 6 and a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 15526.0
Subtracting 24 from 24 leaves us with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 4

Step 6:
If we divide 4 by 4, we get 1 and a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 155261.0
If we subtract 4 from 4, 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.

Going ahead to step 7:
When dividing 0 by 4, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 155261.0
If we take 0 away from 0, we end up 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 8:
0 divided by 4 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 155261.0
If we take 0 away from 0, we end up 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.

The final outcome is 155261.0, with a leftover of 0.0.