Let's divide 86721250 by 623
We're looking to find how many times 623 goes into 86721250.

Step 1:
The number 623 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 623

Step 2:
The number 623 fits into 86 0 times, leaving a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Bring next digit (7) of the dividend behind the 86 and repeat the process: 867 / 623

On to step 3:
If we divide 867 by 623, we get 1 and a remainder of 244.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 623 from 867 leaves us with 244.
Bring next digit (2) of the dividend behind the 244 and repeat the process: 2442 / 623

Going ahead to step 4:
623 goes into 2442 3 times with a remainder of 573.
Put 3 as the next digit of the answer. 
Result so far: 13.0
The remainder is 573 after subtracting 1869 from 2442.
Fetch the next digit (1) from the dividend, attach it to 573 and continue: 5731 / 623

On to step 5:
When dividing 5731 by 623, we get 9 with a remainder of 124.
Write down 9 as next digit of the result. 
Result so far: 139.0
If we subtract 5607 from 5731, we get 124.
Bring next digit (2) of the dividend behind the 124 and repeat the process: 1242 / 623

Advancing to step 6:
If we divide 1242 by 623, we get 1 and a remainder of 619.
Use 1 as the next digit of our solution. 
Result so far: 1391.0
The remainder is 619 after subtracting 623 from 1242.
Grab the next digit (5) from the dividend, add it to 619, then carry on: 6195 / 623

Going ahead to step 7:
623 can be fit into 6195 9 times, resulting in a remainder of 588.
Put 9 as the next digit of the answer. 
Result so far: 13919.0
Deduct 5607 from 6195 and we're left with 588.
Fetch the next digit (0) from the dividend, attach it to 588 and continue: 5880 / 623

Advancing to step 8:
The number 623 fits into 5880 9 times, leaving a remainder of 273.
Write down 9 as next digit of the result. 
Result so far: 139199.0
If we subtract 5607 from 5880, we get 273.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2730, and continue the process.

On to step 9:
If we divide 2730 by 623, we get 4 and a remainder of 238.
Put 4 as the next digit of the answer. 
Result so far: 139199.4
If we take 2492 away from 2730, we end up with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

On to step 10:
623 can be fit into 2380 3 times, resulting in a remainder of 511.
Use 3 as the next digit of our solution. 
Result so far: 139199.43
If we take 1869 away from 2380, we end up with 511.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

Step 11:
623 can be fit into 5110 8 times, resulting in a remainder of 126.
The number 8 becomes the next digit in our result. 
Result so far: 139199.438
The remainder is 126 after subtracting 4984 from 5110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Advancing to step 12:
The number 623 fits into 1260 2 times, leaving a remainder of 14.
The next digit of our result is 2. 
Result so far: 139199.4382
The remainder is 14 after subtracting 1246 from 1260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 13:
623 goes into 140 0 times with a remainder of 140.
Write down 0 as next digit of the result. 
Result so far: 139199.4382
If we take 0 away from 140, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 14:
623 goes into 1400 2 times with a remainder of 154.
The number 2 becomes the next digit in our result. 
Result so far: 139199.438202
The remainder is 154 after subtracting 1246 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Moving on to step 15:
623 goes into 1540 2 times with a remainder of 294.
Write down 2 as next digit of the result. 
Result so far: 139199.4382022
The remainder is 294 after subtracting 1246 from 1540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

The final outcome is 139199.4382022, with a leftover of 2.94e-06.