We're dividing 193221 by 51 
Let's see how many times 51 fits into 193221.

Going ahead to step 1:
51 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 51

Step 2:
19 divided by 51 is 0 with a remainder of 19.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 19 after subtracting 0 from 19.
Include the next digit (3) from the dividend after 19, then repeat: 193 / 51

Moving on to step 3:
If we divide 193 by 51, we get 3 and a remainder of 40.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 153 away from 193, we end up with 40.
Fetch the next digit (2) from the dividend, attach it to 40 and continue: 402 / 51

Let's proceed to step 4:
When dividing 402 by 51, we get 7 with a remainder of 45.
The next digit of our result is 7. 
Result so far: 37.0
Deduct 357 from 402 and we're left with 45.
Include the next digit (2) from the dividend after 45, then repeat: 452 / 51

Let's proceed to step 5:
51 can be fit into 452 8 times, resulting in a remainder of 44.
The next digit of our result is 8. 
Result so far: 378.0
Deduct 408 from 452 and we're left with 44.
Bring next digit (1) of the dividend behind the 44 and repeat the process: 441 / 51

Moving on to step 6:
The number 51 fits into 441 8 times, leaving a remainder of 33.
The next digit of our result is 8. 
Result so far: 3788.0
If we subtract 408 from 441, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 7:
The number 51 fits into 330 6 times, leaving a remainder of 24.
The next digit of our result is 6. 
Result so far: 3788.6
If we take 306 away from 330, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 8:
When dividing 240 by 51, we get 4 with a remainder of 36.
The next digit of our result is 4. 
Result so far: 3788.64
The remainder is 36 after subtracting 204 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 9:
51 can be fit into 360 7 times, resulting in a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 3788.647
If we take 357 away from 360, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 10:
When dividing 30 by 51, we get 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 3788.647
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 11:
The number 51 fits into 300 5 times, leaving a remainder of 45.
The next digit of our result is 5. 
Result so far: 3788.64705
If we subtract 255 from 300, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 12:
51 can be fit into 450 8 times, resulting in a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 3788.647058
Deduct 408 from 450 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 13:
51 goes into 420 8 times with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 3788.6470588
Subtract 408 from 420 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 3788.6470588 and a remainder of 1.2e-07.