Let's divide 9951970 by 321
Our goal is to divide 9951970 by 321.

Let's proceed to step 1:
If we divide 9 by 321, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 321

Step 2:
321 can be fit into 99 0 times, resulting in a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Take the next digit (5) from the dividend and append it to 99, then repeat: 995 / 321

Advancing to step 3:
The number 321 fits into 995 3 times, leaving a remainder of 32.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 963 from 995, we get 32.
Bring next digit (1) of the dividend behind the 32 and repeat the process: 321 / 321

Step 4:
321 goes into 321 1 times with a remainder of 0.
The next digit of our result is 1. 
Result so far: 31.0
If we take 321 away from 321, we end up with 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 321

On to step 5:
321 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 310.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 321

Going ahead to step 6:
If we divide 97 by 321, we get 0 and a remainder of 97.
Record the quotient 0 as the next digit in the result. 
Result so far: 3100.0
The remainder is 97 after subtracting 0 from 97.
Take the next digit (0) from the dividend and append it to 97, then repeat: 970 / 321

On to step 7:
321 can be fit into 970 3 times, resulting in a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 31003.0
The remainder is 7 after subtracting 963 from 970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 8:
If we divide 70 by 321, we get 0 and a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 31003.0
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 9:
If we divide 700 by 321, we get 2 and a remainder of 58.
Write down 2 as next digit of the result. 
Result so far: 31003.02
If we take 642 away from 700, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 10:
When dividing 580 by 321, we get 1 with a remainder of 259.
The number 1 becomes the next digit in our result. 
Result so far: 31003.021
The remainder is 259 after subtracting 321 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Advancing to step 11:
321 can be fit into 2590 8 times, resulting in a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 31003.0218
If we take 2568 away from 2590, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 12:
321 can be fit into 220 0 times, resulting in a remainder of 220.
The next digit of our result is 0. 
Result so far: 31003.0218
Subtract 0 from 220 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 13:
When dividing 2200 by 321, we get 6 with a remainder of 274.
The number 6 becomes the next digit in our result. 
Result so far: 31003.021806
Subtract 1926 from 2200 to get 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Advancing to step 14:
2740 divided by 321 is 8 with a remainder of 172.
Record the quotient 8 as the next digit in the result. 
Result so far: 31003.0218068
If we subtract 2568 from 2740, we get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Advancing to step 15:
321 goes into 1720 5 times with a remainder of 115.
Write down 5 as next digit of the result. 
Result so far: 31003.02180685
Subtract 1605 from 1720 to get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

The quotient of the division is 31003.02180685, and the remainder is 1.15e-07.