We look at the division of 21561983 by 375 
Our goal is to divide 21561983 by 375.

Advancing to step 1:
When dividing 2 by 375, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 375

On to step 2:
21 divided by 375 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Bring next digit (5) of the dividend behind the 21 and repeat the process: 215 / 375

Going ahead to step 3:
When dividing 215 by 375, we get 0 with a remainder of 215.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 215, we get 215.
Grab the next digit (6) from the dividend, add it to 215, then carry on: 2156 / 375

Let's proceed to step 4:
When dividing 2156 by 375, we get 5 with a remainder of 281.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 1875 from 2156 to get 281.
Bring next digit (1) of the dividend behind the 281 and repeat the process: 2811 / 375

Advancing to step 5:
If we divide 2811 by 375, we get 7 and a remainder of 186.
Put 7 as the next digit of the answer. 
Result so far: 57.0
Subtract 2625 from 2811 to get 186.
Take the next digit (9) from the dividend and append it to 186, then repeat: 1869 / 375

Let's proceed to step 6:
When dividing 1869 by 375, we get 4 with a remainder of 369.
Use 4 as the next digit of our solution. 
Result so far: 574.0
Subtract 1500 from 1869 to get 369.
Bring next digit (8) of the dividend behind the 369 and repeat the process: 3698 / 375

Let's proceed to step 7:
375 can be fit into 3698 9 times, resulting in a remainder of 323.
Put 9 as the next digit of the answer. 
Result so far: 5749.0
If we take 3375 away from 3698, we end up with 323.
Take the next digit (3) from the dividend and append it to 323, then repeat: 3233 / 375

Moving on to step 8:
If we divide 3233 by 375, we get 8 and a remainder of 233.
Record the quotient 8 as the next digit in the result. 
Result so far: 57498.0
If we subtract 3000 from 3233, we get 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Advancing to step 9:
2330 divided by 375 is 6 with a remainder of 80.
Write down 6 as next digit of the result. 
Result so far: 57498.6
Deduct 2250 from 2330 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 10:
The number 375 fits into 800 2 times, leaving a remainder of 50.
Record the quotient 2 as the next digit in the result. 
Result so far: 57498.62
If we take 750 away from 800, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 11:
500 divided by 375 is 1 with a remainder of 125.
Put 1 as the next digit of the answer. 
Result so far: 57498.621
If we take 375 away from 500, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 12:
If we divide 1250 by 375, we get 3 and a remainder of 125.
The next digit of our result is 3. 
Result so far: 57498.6213
Deduct 1125 from 1250 and we're left with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Going ahead to step 13:
If we divide 1250 by 375, we get 3 and a remainder of 125.
Put 3 as the next digit of the answer. 
Result so far: 57498.62133
The remainder is 125 after subtracting 1125 from 1250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Our division results in 57498.62133 with a remaining 0.000125.