Let's divide 87123039 by 207
We're looking to find how many times 207 goes into 87123039.

Going ahead to step 1:
When dividing 8 by 207, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 207

Moving on to step 2:
87 divided by 207 is 0 with a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 87 and we're left with 87.
Include the next digit (1) from the dividend after 87, then repeat: 871 / 207

On to step 3:
When dividing 871 by 207, we get 4 with a remainder of 43.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 828 from 871 and we're left with 43.
Grab the next digit (2) from the dividend, add it to 43, then carry on: 432 / 207

Step 4:
432 divided by 207 is 2 with a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 42.0
Deduct 414 from 432 and we're left with 18.
Grab the next digit (3) from the dividend, add it to 18, then carry on: 183 / 207

On to step 5:
If we divide 183 by 207, we get 0 and a remainder of 183.
Use 0 as the next digit of our solution. 
Result so far: 420.0
The remainder is 183 after subtracting 0 from 183.
Include the next digit (0) from the dividend after 183, then repeat: 1830 / 207

Step 6:
207 can be fit into 1830 8 times, resulting in a remainder of 174.
Write down 8 as next digit of the result. 
Result so far: 4208.0
Deduct 1656 from 1830 and we're left with 174.
Grab the next digit (3) from the dividend, add it to 174, then carry on: 1743 / 207

Moving on to step 7:
207 goes into 1743 8 times with a remainder of 87.
The next digit of our result is 8. 
Result so far: 42088.0
Deduct 1656 from 1743 and we're left with 87.
Append the next digit (9) from the dividend to 87 and continue with: 879 / 207

Advancing to step 8:
If we divide 879 by 207, we get 4 and a remainder of 51.
Write down 4 as next digit of the result. 
Result so far: 420884.0
The remainder is 51 after subtracting 828 from 879.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 9:
207 can be fit into 510 2 times, resulting in a remainder of 96.
Put 2 as the next digit of the answer. 
Result so far: 420884.2
If we subtract 414 from 510, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 10:
If we divide 960 by 207, we get 4 and a remainder of 132.
Use 4 as the next digit of our solution. 
Result so far: 420884.24
If we subtract 828 from 960, we get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Advancing to step 11:
207 can be fit into 1320 6 times, resulting in a remainder of 78.
Use 6 as the next digit of our solution. 
Result so far: 420884.246
If we subtract 1242 from 1320, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 12:
207 goes into 780 3 times with a remainder of 159.
Use 3 as the next digit of our solution. 
Result so far: 420884.2463
Deduct 621 from 780 and we're left with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Advancing to step 13:
1590 divided by 207 is 7 with a remainder of 141.
Use 7 as the next digit of our solution. 
Result so far: 420884.24637
If we subtract 1449 from 1590, we get 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Moving on to step 14:
207 can be fit into 1410 6 times, resulting in a remainder of 168.
Use 6 as the next digit of our solution. 
Result so far: 420884.246376
If we subtract 1242 from 1410, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Advancing to step 15:
When dividing 1680 by 207, we get 8 with a remainder of 24.
The next digit of our result is 8. 
Result so far: 420884.2463768
Deduct 1656 from 1680 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 16:
The number 207 fits into 240 1 times, leaving a remainder of 33.
Put 1 as the next digit of the answer. 
Result so far: 420884.24637681
Subtracting 207 from 240 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

In conclusion, the division gives 420884.24637681 with a balance of 3.3e-08.