We look at the division of 18200648 by 851 
We're looking to find how many times 851 goes into 18200648.

On to step 1:
1 divided by 851 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 851

Advancing to step 2:
851 goes into 18 0 times with a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Grab the next digit (2) from the dividend, add it to 18, then carry on: 182 / 851

Advancing to step 3:
If we divide 182 by 851, we get 0 and a remainder of 182.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 182 after subtracting 0 from 182.
Take the next digit (0) from the dividend and append it to 182, then repeat: 1820 / 851

Step 4:
If we divide 1820 by 851, we get 2 and a remainder of 118.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 1702 from 1820, we get 118.
Append the next digit (0) from the dividend to 118 and continue with: 1180 / 851

On to step 5:
851 can be fit into 1180 1 times, resulting in a remainder of 329.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we take 851 away from 1180, we end up with 329.
Grab the next digit (6) from the dividend, add it to 329, then carry on: 3296 / 851

Advancing to step 6:
851 can be fit into 3296 3 times, resulting in a remainder of 743.
The number 3 becomes the next digit in our result. 
Result so far: 213.0
The remainder is 743 after subtracting 2553 from 3296.
Include the next digit (4) from the dividend after 743, then repeat: 7434 / 851

Step 7:
851 can be fit into 7434 8 times, resulting in a remainder of 626.
Use 8 as the next digit of our solution. 
Result so far: 2138.0
Subtracting 6808 from 7434 leaves us with 626.
Fetch the next digit (8) from the dividend, attach it to 626 and continue: 6268 / 851

Let's proceed to step 8:
851 can be fit into 6268 7 times, resulting in a remainder of 311.
Record the quotient 7 as the next digit in the result. 
Result so far: 21387.0
Deduct 5957 from 6268 and we're left with 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

Going ahead to step 9:
851 can be fit into 3110 3 times, resulting in a remainder of 557.
The next digit of our result is 3. 
Result so far: 21387.3
Deduct 2553 from 3110 and we're left with 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Let's proceed to step 10:
The number 851 fits into 5570 6 times, leaving a remainder of 464.
Record the quotient 6 as the next digit in the result. 
Result so far: 21387.36
Subtracting 5106 from 5570 leaves us with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Moving on to step 11:
851 goes into 4640 5 times with a remainder of 385.
The next digit of our result is 5. 
Result so far: 21387.365
Subtracting 4255 from 4640 leaves us with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Let's proceed to step 12:
If we divide 3850 by 851, we get 4 and a remainder of 446.
Write down 4 as next digit of the result. 
Result so far: 21387.3654
Subtracting 3404 from 3850 leaves us with 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Going ahead to step 13:
851 goes into 4460 5 times with a remainder of 205.
Put 5 as the next digit of the answer. 
Result so far: 21387.36545
Deduct 4255 from 4460 and we're left with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 14:
When dividing 2050 by 851, we get 2 with a remainder of 348.
Write down 2 as next digit of the result. 
Result so far: 21387.365452
The remainder is 348 after subtracting 1702 from 2050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Step 15:
The number 851 fits into 3480 4 times, leaving a remainder of 76.
The next digit of our result is 4. 
Result so far: 21387.3654524
Subtracting 3404 from 3480 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 16:
If we divide 760 by 851, we get 0 and a remainder of 760.
The number 0 becomes the next digit in our result. 
Result so far: 21387.3654524
If we take 0 away from 760, we end up with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

The final outcome is 21387.3654524, with a leftover of 7.6e-07.