72121028 divided by 207 
We're looking to find how many times 207 goes into 72121028.

Step 1:
207 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 207

On to step 2:
207 goes into 72 0 times with a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 72, we get 72.
Include the next digit (1) from the dividend after 72, then repeat: 721 / 207

Going ahead to step 3:
721 divided by 207 is 3 with a remainder of 100.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 621 from 721, we get 100.
Include the next digit (2) from the dividend after 100, then repeat: 1002 / 207

Let's proceed to step 4:
If we divide 1002 by 207, we get 4 and a remainder of 174.
Use 4 as the next digit of our solution. 
Result so far: 34.0
If we subtract 828 from 1002, we get 174.
Fetch the next digit (1) from the dividend, attach it to 174 and continue: 1741 / 207

Let's proceed to step 5:
1741 divided by 207 is 8 with a remainder of 85.
Record the quotient 8 as the next digit in the result. 
Result so far: 348.0
Deduct 1656 from 1741 and we're left with 85.
Grab the next digit (0) from the dividend, add it to 85, then carry on: 850 / 207

Let's proceed to step 6:
207 can be fit into 850 4 times, resulting in a remainder of 22.
Use 4 as the next digit of our solution. 
Result so far: 3484.0
If we subtract 828 from 850, we get 22.
Include the next digit (2) from the dividend after 22, then repeat: 222 / 207

On to step 7:
222 divided by 207 is 1 with a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 34841.0
Deduct 207 from 222 and we're left with 15.
Take the next digit (8) from the dividend and append it to 15, then repeat: 158 / 207

On to step 8:
The number 207 fits into 158 0 times, leaving a remainder of 158.
Put 0 as the next digit of the answer. 
Result so far: 348410.0
Subtracting 0 from 158 leaves us with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Moving on to step 9:
207 goes into 1580 7 times with a remainder of 131.
Use 7 as the next digit of our solution. 
Result so far: 348410.7
Subtract 1449 from 1580 to get 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Moving on to step 10:
If we divide 1310 by 207, we get 6 and a remainder of 68.
Use 6 as the next digit of our solution. 
Result so far: 348410.76
If we take 1242 away from 1310, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 11:
680 divided by 207 is 3 with a remainder of 59.
Record the quotient 3 as the next digit in the result. 
Result so far: 348410.763
If we take 621 away from 680, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 12:
207 goes into 590 2 times with a remainder of 176.
The number 2 becomes the next digit in our result. 
Result so far: 348410.7632
Subtract 414 from 590 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Moving on to step 13:
207 can be fit into 1760 8 times, resulting in a remainder of 104.
Write down 8 as next digit of the result. 
Result so far: 348410.76328
The remainder is 104 after subtracting 1656 from 1760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

On to step 14:
1040 divided by 207 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 348410.763285
The remainder is 5 after subtracting 1035 from 1040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 15:
If we divide 50 by 207, we get 0 and a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 348410.763285
Subtract 0 from 50 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.

Advancing to step 16:
When dividing 500 by 207, we get 2 with a remainder of 86.
Write down 2 as next digit of the result. 
Result so far: 348410.76328502
If we take 414 away from 500, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

After the division, we end up with 348410.76328502 and a remainder of 8.6e-08.