Let's divide 319699 by 21
We want to figure out the number of times 319699 can be divided by 21.

Advancing to step 1:
If we divide 3 by 21, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 21

Advancing to step 2:
31 divided by 21 is 1 with a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 21 from 31 and we're left with 10.
Bring next digit (9) of the dividend behind the 10 and repeat the process: 109 / 21

Moving on to step 3:
21 goes into 109 5 times with a remainder of 4.
The next digit of our result is 5. 
Result so far: 15.0
If we subtract 105 from 109, we get 4.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 21

On to step 4:
21 can be fit into 46 2 times, resulting in a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 152.0
If we subtract 42 from 46, we get 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 21

Step 5:
21 goes into 49 2 times with a remainder of 7.
Write down 2 as next digit of the result. 
Result so far: 1522.0
The remainder is 7 after subtracting 42 from 49.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 21

Advancing to step 6:
The number 21 fits into 79 3 times, leaving a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 15223.0
Subtracting 63 from 79 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 7:
21 goes into 160 7 times with a remainder of 13.
The next digit of our result is 7. 
Result so far: 15223.7
Subtract 147 from 160 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 8:
When dividing 130 by 21, we get 6 with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 15223.76
If we take 126 away from 130, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
The number 21 fits into 40 1 times, leaving a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 15223.761
Deduct 21 from 40 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 10:
190 divided by 21 is 9 with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 15223.7619
Subtract 189 from 190 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 11:
21 can be fit into 10 0 times, resulting in a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 15223.7619
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 12:
If we divide 100 by 21, we get 4 and a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 15223.761904
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 13:
When dividing 160 by 21, we get 7 with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 15223.7619047
If we subtract 147 from 160, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 14:
The number 21 fits into 130 6 times, leaving a remainder of 4.
The next digit of our result is 6. 
Result so far: 15223.76190476
Deduct 126 from 130 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 15223.76190476 with a remainder of 4e-09.