Let's divide 18991899 by 861
Our goal is to divide 18991899 by 861.

Step 1:
The number 861 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 861

Moving on to step 2:
The number 861 fits into 18 0 times, leaving 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.
Bring next digit (9) of the dividend behind the 18 and repeat the process: 189 / 861

Let's proceed to step 3:
861 can be fit into 189 0 times, resulting in a remainder of 189.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 189, we get 189.
Take the next digit (9) from the dividend and append it to 189, then repeat: 1899 / 861

Going ahead to step 4:
The number 861 fits into 1899 2 times, leaving a remainder of 177.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 1722 from 1899, we get 177.
Grab the next digit (1) from the dividend, add it to 177, then carry on: 1771 / 861

Step 5:
861 can be fit into 1771 2 times, resulting in a remainder of 49.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
The remainder is 49 after subtracting 1722 from 1771.
Bring next digit (8) of the dividend behind the 49 and repeat the process: 498 / 861

Step 6:
861 can be fit into 498 0 times, resulting in a remainder of 498.
The next digit of our result is 0. 
Result so far: 220.0
Deduct 0 from 498 and we're left with 498.
Take the next digit (9) from the dividend and append it to 498, then repeat: 4989 / 861

On to step 7:
861 can be fit into 4989 5 times, resulting in a remainder of 684.
The number 5 becomes the next digit in our result. 
Result so far: 2205.0
If we subtract 4305 from 4989, we get 684.
Fetch the next digit (9) from the dividend, attach it to 684 and continue: 6849 / 861

On to step 8:
6849 divided by 861 is 7 with a remainder of 822.
Record the quotient 7 as the next digit in the result. 
Result so far: 22057.0
If we take 6027 away from 6849, we end up with 822.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8220, and continue the process.

Let's proceed to step 9:
8220 divided by 861 is 9 with a remainder of 471.
Use 9 as the next digit of our solution. 
Result so far: 22057.9
Subtract 7749 from 8220 to get 471.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4710, and continue the process.

On to step 10:
861 goes into 4710 5 times with a remainder of 405.
Put 5 as the next digit of the answer. 
Result so far: 22057.95
Subtracting 4305 from 4710 leaves us with 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Let's proceed to step 11:
861 goes into 4050 4 times with a remainder of 606.
The next digit of our result is 4. 
Result so far: 22057.954
Deduct 3444 from 4050 and we're left with 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Advancing to step 12:
If we divide 6060 by 861, we get 7 and a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 22057.9547
Deduct 6027 from 6060 and we're left 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.

Advancing to step 13:
When dividing 330 by 861, we get 0 with a remainder of 330.
Use 0 as the next digit of our solution. 
Result so far: 22057.9547
Subtracting 0 from 330 leaves us with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Going ahead to step 14:
When dividing 3300 by 861, we get 3 with a remainder of 717.
Put 3 as the next digit of the answer. 
Result so far: 22057.954703
If we take 2583 away from 3300, we end up with 717.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7170, and continue the process.

Advancing to step 15:
The number 861 fits into 7170 8 times, leaving a remainder of 282.
Record the quotient 8 as the next digit in the result. 
Result so far: 22057.9547038
Subtracting 6888 from 7170 leaves us with 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Advancing to step 16:
If we divide 2820 by 861, we get 3 and a remainder of 237.
Use 3 as the next digit of our solution. 
Result so far: 22057.95470383
If we subtract 2583 from 2820, we get 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

The final result is 22057.95470383 with a remainder of 2.37e-07.