Let's divide 21890921 by 380
We're looking to find how many times 380 goes into 21890921.

Advancing to step 1:
The number 380 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 380

Step 2:
If we divide 21 by 380, we get 0 and a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Take the next digit (8) from the dividend and append it to 21, then repeat: 218 / 380

On to step 3:
If we divide 218 by 380, we get 0 and a remainder of 218.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 218 leaves us with 218.
Fetch the next digit (9) from the dividend, attach it to 218 and continue: 2189 / 380

Advancing to step 4:
380 goes into 2189 5 times with a remainder of 289.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 289 after subtracting 1900 from 2189.
Fetch the next digit (0) from the dividend, attach it to 289 and continue: 2890 / 380

Advancing to step 5:
380 goes into 2890 7 times with a remainder of 230.
Use 7 as the next digit of our solution. 
Result so far: 57.0
If we subtract 2660 from 2890, we get 230.
Append the next digit (9) from the dividend to 230 and continue with: 2309 / 380

Moving on to step 6:
380 can be fit into 2309 6 times, resulting in a remainder of 29.
The next digit of our result is 6. 
Result so far: 576.0
If we subtract 2280 from 2309, we get 29.
Append the next digit (2) from the dividend to 29 and continue with: 292 / 380

On to step 7:
When dividing 292 by 380, we get 0 with a remainder of 292.
Use 0 as the next digit of our solution. 
Result so far: 5760.0
If we take 0 away from 292, we end up with 292.
Append the next digit (1) from the dividend to 292 and continue with: 2921 / 380

Moving on to step 8:
380 can be fit into 2921 7 times, resulting in a remainder of 261.
Put 7 as the next digit of the answer. 
Result so far: 57607.0
If we subtract 2660 from 2921, we get 261.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2610, and continue the process.

Moving on to step 9:
380 goes into 2610 6 times with a remainder of 330.
Write down 6 as next digit of the result. 
Result so far: 57607.6
If we take 2280 away from 2610, we end up with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Advancing to step 10:
If we divide 3300 by 380, we get 8 and a remainder of 260.
Use 8 as the next digit of our solution. 
Result so far: 57607.68
Deduct 3040 from 3300 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Moving on to step 11:
2600 divided by 380 is 6 with a remainder of 320.
Record the quotient 6 as the next digit in the result. 
Result so far: 57607.686
The remainder is 320 after subtracting 2280 from 2600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 12:
The number 380 fits into 3200 8 times, leaving a remainder of 160.
Put 8 as the next digit of the answer. 
Result so far: 57607.6868
Deduct 3040 from 3200 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 13:
1600 divided by 380 is 4 with a remainder of 80.
The number 4 becomes the next digit in our result. 
Result so far: 57607.68684
Deduct 1520 from 1600 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 14:
800 divided by 380 is 2 with a remainder of 40.
The next digit of our result is 2. 
Result so far: 57607.686842
If we subtract 760 from 800, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 15:
The number 380 fits into 400 1 times, leaving a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 57607.6868421
If we subtract 380 from 400, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 16:
If we divide 200 by 380, we get 0 and a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 57607.6868421
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final result is 57607.6868421 with a remainder of 2e-07.