Let's divide 370861 by 21
Our goal is to divide 370861 by 21.

Moving on to step 1:
21 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 21

Going ahead to step 2:
21 goes into 37 1 times with a remainder of 16.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 21 from 37 to get 16.
Take the next digit (0) from the dividend and append it to 16, then repeat: 160 / 21

On to step 3:
21 can be fit into 160 7 times, resulting in a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Subtract 147 from 160 to get 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 21

Moving on to step 4:
21 can be fit into 138 6 times, resulting in a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 176.0
If we take 126 away from 138, we end up with 12.
Bring next digit (6) of the dividend behind the 12 and repeat the process: 126 / 21

Advancing to step 5:
21 goes into 126 6 times with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 1766.0
If we take 126 away from 126, we end up with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 21

Going ahead to step 6:
21 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 17660.0
Deduct 0 from 1 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
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: 17660.0
If we subtract 0 from 10, we get 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 8:
The number 21 fits into 100 4 times, leaving a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 17660.04
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.

Going ahead to step 9:
21 goes into 160 7 times with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 17660.047
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.

Advancing to step 10:
21 goes into 130 6 times with a remainder of 4.
The next digit of our result is 6. 
Result so far: 17660.0476
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.

On to step 11:
40 divided by 21 is 1 with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 17660.04761
Subtracting 21 from 40 leaves us 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.

Step 12:
21 can be fit into 190 9 times, resulting in a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 17660.047619
The remainder is 1 after subtracting 189 from 190.
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 13:
10 divided by 21 is 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 17660.047619
Deduct 0 from 10 and we're left 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.

Advancing to step 14:
The number 21 fits into 100 4 times, leaving a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 17660.04761904
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final result is 17660.04761904 with a remainder of 1.6e-08.