We're dividing 20187868 by 345 
Our goal is to divide 20187868 by 345.

On to step 1:
When dividing 2 by 345, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 345

Let's proceed to step 2:
The number 345 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Fetch the next digit (1) from the dividend, attach it to 20 and continue: 201 / 345

Going ahead to step 3:
345 goes into 201 0 times with a remainder of 201.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 201, we get 201.
Fetch the next digit (8) from the dividend, attach it to 201 and continue: 2018 / 345

Moving on to step 4:
2018 divided by 345 is 5 with a remainder of 293.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Deduct 1725 from 2018 and we're left with 293.
Append the next digit (7) from the dividend to 293 and continue with: 2937 / 345

Advancing to step 5:
If we divide 2937 by 345, we get 8 and a remainder of 177.
Record the quotient 8 as the next digit in the result. 
Result so far: 58.0
If we subtract 2760 from 2937, we get 177.
Grab the next digit (8) from the dividend, add it to 177, then carry on: 1778 / 345

Going ahead to step 6:
345 can be fit into 1778 5 times, resulting in a remainder of 53.
Use 5 as the next digit of our solution. 
Result so far: 585.0
Subtracting 1725 from 1778 leaves us with 53.
Include the next digit (6) from the dividend after 53, then repeat: 536 / 345

Step 7:
When dividing 536 by 345, we get 1 with a remainder of 191.
The next digit of our result is 1. 
Result so far: 5851.0
If we subtract 345 from 536, we get 191.
Grab the next digit (8) from the dividend, add it to 191, then carry on: 1918 / 345

Step 8:
1918 divided by 345 is 5 with a remainder of 193.
Use 5 as the next digit of our solution. 
Result so far: 58515.0
Deduct 1725 from 1918 and we're left with 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Going ahead to step 9:
345 goes into 1930 5 times with a remainder of 205.
Record the quotient 5 as the next digit in the result. 
Result so far: 58515.5
Subtract 1725 from 1930 to get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Going ahead to step 10:
345 can be fit into 2050 5 times, resulting in a remainder of 325.
The next digit of our result is 5. 
Result so far: 58515.55
Deduct 1725 from 2050 and we're left with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

The quotient of the division is 58515.55, and the remainder is 0.325.