9951221 ÷ 652 
Our goal is to divide 9951221 by 652.

Advancing to step 1:
652 can be fit into 9 0 times, resulting in a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 652

On to step 2:
99 divided by 652 is 0 with a remainder of 99.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 99 and we're left with 99.
Include the next digit (5) from the dividend after 99, then repeat: 995 / 652

Advancing to step 3:
995 divided by 652 is 1 with a remainder of 343.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 652 from 995, we get 343.
Fetch the next digit (1) from the dividend, attach it to 343 and continue: 3431 / 652

On to step 4:
3431 divided by 652 is 5 with a remainder of 171.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Deduct 3260 from 3431 and we're left with 171.
Fetch the next digit (2) from the dividend, attach it to 171 and continue: 1712 / 652

Step 5:
652 goes into 1712 2 times with a remainder of 408.
Use 2 as the next digit of our solution. 
Result so far: 152.0
The remainder is 408 after subtracting 1304 from 1712.
Fetch the next digit (2) from the dividend, attach it to 408 and continue: 4082 / 652

Let's proceed to step 6:
4082 divided by 652 is 6 with a remainder of 170.
The number 6 becomes the next digit in our result. 
Result so far: 1526.0
If we subtract 3912 from 4082, we get 170.
Take the next digit (1) from the dividend and append it to 170, then repeat: 1701 / 652

Step 7:
652 goes into 1701 2 times with a remainder of 397.
Write down 2 as next digit of the result. 
Result so far: 15262.0
If we subtract 1304 from 1701, we get 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Step 8:
When dividing 3970 by 652, we get 6 with a remainder of 58.
Record the quotient 6 as the next digit in the result. 
Result so far: 15262.6
If we subtract 3912 from 3970, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 9:
When dividing 580 by 652, we get 0 with a remainder of 580.
Put 0 as the next digit of the answer. 
Result so far: 15262.6
Subtracting 0 from 580 leaves us with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Step 10:
652 can be fit into 5800 8 times, resulting in a remainder of 584.
The next digit of our result is 8. 
Result so far: 15262.608
Deduct 5216 from 5800 and we're left with 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Moving on to step 11:
The number 652 fits into 5840 8 times, leaving a remainder of 624.
Write down 8 as next digit of the result. 
Result so far: 15262.6088
If we subtract 5216 from 5840, we get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

The final result is 15262.6088 with a remainder of 0.00624.