669616 divided by 1 
Our goal is to divide 669616 by 1.

Advancing to step 1:
1 can be fit into 6 6 times, resulting in a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 6 from 6 leaves us with 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 1

Moving on to step 2:
1 goes into 6 6 times with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 66.0
Deduct 6 from 6 and we're left with 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 1

Moving on to step 3:
9 divided by 1 is 9 with a remainder of 0.
The next digit of our result is 9. 
Result so far: 669.0
The remainder is 0 after subtracting 9 from 9.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 1

Advancing to step 4:
1 goes into 6 6 times with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 6696.0
If we take 6 away from 6, we end up with 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 1

On to step 5:
If we divide 1 by 1, we get 1 and a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 66961.0
If we take 1 away from 1, we end up with 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 1

Advancing to step 6:
6 divided by 1 is 6 with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 669616.0
If we take 6 away from 6, 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.

Let's proceed to step 7:
The number 1 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 669616.0
Subtract 0 from 0 to 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.

On to step 8:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 669616.0
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 669616.0, with a leftover of 0.0.