Let's divide 370188 by 21
Let's see how many times 21 fits into 370188.

Let's proceed to step 1:
3 divided by 21 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 21

Step 2:
37 divided by 21 is 1 with a remainder of 16.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 21 from 37 leaves us with 16.
Bring next digit (0) of the dividend behind the 16 and repeat the process: 160 / 21

Moving on to step 3:
21 can be fit into 160 7 times, resulting in a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 17.0
If we subtract 147 from 160, we get 13.
Take the next digit (1) from the dividend and append it to 13, then repeat: 131 / 21

On to step 4:
If we divide 131 by 21, we get 6 and a remainder of 5.
Use 6 as the next digit of our solution. 
Result so far: 176.0
Subtract 126 from 131 to get 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 21

Advancing to step 5:
58 divided by 21 is 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 1762.0
Subtracting 42 from 58 leaves us with 16.
Fetch the next digit (8) from the dividend, attach it to 16 and continue: 168 / 21

Advancing to step 6:
If we divide 168 by 21, we get 8 and a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 17628.0
Subtract 168 from 168 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
21 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 17628.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
21 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 17628.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 17628.0 with a balance of 0.0.