621600 ÷ 1 
Our goal is to divide 621600 by 1.

Moving on to step 1:
If we divide 6 by 1, we get 6 and a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we take 6 away from 6, we end up with 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 1

Step 2:
If we divide 2 by 1, we get 2 and a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 62.0
Subtract 2 from 2 to get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 1

Moving on to step 3:
1 divided by 1 is 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 621.0
The remainder is 0 after subtracting 1 from 1.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 1

Moving on to step 4:
When dividing 6 by 1, we get 6 with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 6216.0
If we take 6 away from 6, we end up with 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 1

Going ahead to step 5:
1 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 62160.0
The remainder is 0 after subtracting 0 from 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 1

Going ahead to step 6:
When dividing 0 by 1, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 621600.0
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.

Going ahead to step 7:
When dividing 0 by 1, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 621600.0
Subtracting 0 from 0 leaves us 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:
The number 1 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 621600.0
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.

After the division, we end up with 621600.0 and a remainder of 0.0.