373621 ÷ 18 
Let's see how many times 18 fits into 373621.

Step 1:
18 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 18

Step 2:
If we divide 37 by 18, we get 2 and a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 36 from 37, we get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 18

Advancing to step 3:
If we divide 13 by 18, we get 0 and a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 20.0
Subtract 0 from 13 to get 13.
Grab the next digit (6) from the dividend, add it to 13, then carry on: 136 / 18

Moving on to step 4:
When dividing 136 by 18, we get 7 with a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 207.0
If we subtract 126 from 136, we get 10.
Take the next digit (2) from the dividend and append it to 10, then repeat: 102 / 18

Let's proceed to step 5:
18 can be fit into 102 5 times, resulting in a remainder of 12.
Put 5 as the next digit of the answer. 
Result so far: 2075.0
Subtract 90 from 102 to get 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 18

Advancing to step 6:
18 can be fit into 121 6 times, resulting in a remainder of 13.
Put 6 as the next digit of the answer. 
Result so far: 20756.0
Subtracting 108 from 121 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 7:
18 can be fit into 130 7 times, resulting in a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 20756.7
Subtracting 126 from 130 leaves us 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.

Let's proceed to step 8:
18 can be fit into 40 2 times, resulting in a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 20756.72
Subtracting 36 from 40 leaves us 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.

Advancing to step 9:
18 can be fit into 40 2 times, resulting in a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 20756.722
The remainder is 4 after subtracting 36 from 40.
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 20756.722 with a remainder of 0.0004.