We're dividing 72380942 by 210 
We want to divide 72380942 by 210.

Step 1:
210 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 210

Going ahead to step 2:
72 divided by 210 is 0 with a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Grab the next digit (3) from the dividend, add it to 72, then carry on: 723 / 210

Going ahead to step 3:
If we divide 723 by 210, we get 3 and a remainder of 93.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 630 from 723 leaves us with 93.
Take the next digit (8) from the dividend and append it to 93, then repeat: 938 / 210

Step 4:
210 can be fit into 938 4 times, resulting in a remainder of 98.
Put 4 as the next digit of the answer. 
Result so far: 34.0
Subtracting 840 from 938 leaves us with 98.
Fetch the next digit (0) from the dividend, attach it to 98 and continue: 980 / 210

Advancing to step 5:
980 divided by 210 is 4 with a remainder of 140.
The number 4 becomes the next digit in our result. 
Result so far: 344.0
The remainder is 140 after subtracting 840 from 980.
Fetch the next digit (9) from the dividend, attach it to 140 and continue: 1409 / 210

Let's proceed to step 6:
The number 210 fits into 1409 6 times, leaving a remainder of 149.
Use 6 as the next digit of our solution. 
Result so far: 3446.0
Subtract 1260 from 1409 to get 149.
Fetch the next digit (4) from the dividend, attach it to 149 and continue: 1494 / 210

On to step 7:
1494 divided by 210 is 7 with a remainder of 24.
Write down 7 as next digit of the result. 
Result so far: 34467.0
Subtracting 1470 from 1494 leaves us with 24.
Include the next digit (2) from the dividend after 24, then repeat: 242 / 210

Advancing to step 8:
If we divide 242 by 210, we get 1 and a remainder of 32.
Record the quotient 1 as the next digit in the result. 
Result so far: 344671.0
The remainder is 32 after subtracting 210 from 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 9:
The number 210 fits into 320 1 times, leaving a remainder of 110.
The next digit of our result is 1. 
Result so far: 344671.1
The remainder is 110 after subtracting 210 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 10:
210 can be fit into 1100 5 times, resulting in a remainder of 50.
The next digit of our result is 5. 
Result so far: 344671.15
Subtract 1050 from 1100 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 11:
210 can be fit into 500 2 times, resulting in a remainder of 80.
Write down 2 as next digit of the result. 
Result so far: 344671.152
Subtracting 420 from 500 leaves us 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.

On to step 12:
When dividing 800 by 210, we get 3 with a remainder of 170.
Put 3 as the next digit of the answer. 
Result so far: 344671.1523
If we take 630 away from 800, we end up with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 13:
If we divide 1700 by 210, we get 8 and a remainder of 20.
The number 8 becomes the next digit in our result. 
Result so far: 344671.15238
If we subtract 1680 from 1700, 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.

Step 14:
210 can be fit into 200 0 times, resulting in a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 344671.15238
Subtract 0 from 200 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 15:
If we divide 2000 by 210, we get 9 and a remainder of 110.
Put 9 as the next digit of the answer. 
Result so far: 344671.1523809
If we take 1890 away from 2000, we end up with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Let's proceed to step 16:
1100 divided by 210 is 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 344671.15238095
Subtracting 1050 from 1100 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 344671.15238095 with a remainder of 5e-08.