Let's divide 21855547 by 428
We want to divide 21855547 by 428.

Going ahead to step 1:
The number 428 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 428

Step 2:
21 divided by 428 is 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Append the next digit (8) from the dividend to 21 and continue with: 218 / 428

Step 3:
When dividing 218 by 428, we get 0 with a remainder of 218.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 218, we get 218.
Include the next digit (5) from the dividend after 218, then repeat: 2185 / 428

Advancing to step 4:
If we divide 2185 by 428, we get 5 and a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 45 after subtracting 2140 from 2185.
Include the next digit (5) from the dividend after 45, then repeat: 455 / 428

Moving on to step 5:
The number 428 fits into 455 1 times, leaving a remainder of 27.
The next digit of our result is 1. 
Result so far: 51.0
Subtract 428 from 455 to get 27.
Include the next digit (5) from the dividend after 27, then repeat: 275 / 428

Going ahead to step 6:
428 can be fit into 275 0 times, resulting in a remainder of 275.
Record the quotient 0 as the next digit in the result. 
Result so far: 510.0
Subtract 0 from 275 to get 275.
Take the next digit (4) from the dividend and append it to 275, then repeat: 2754 / 428

Moving on to step 7:
When dividing 2754 by 428, we get 6 with a remainder of 186.
Use 6 as the next digit of our solution. 
Result so far: 5106.0
Deduct 2568 from 2754 and we're left with 186.
Fetch the next digit (7) from the dividend, attach it to 186 and continue: 1867 / 428

Let's proceed to step 8:
When dividing 1867 by 428, we get 4 with a remainder of 155.
Use 4 as the next digit of our solution. 
Result so far: 51064.0
Subtract 1712 from 1867 to get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Step 9:
If we divide 1550 by 428, we get 3 and a remainder of 266.
Put 3 as the next digit of the answer. 
Result so far: 51064.3
If we take 1284 away from 1550, we end up with 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Moving on to step 10:
If we divide 2660 by 428, we get 6 and a remainder of 92.
Record the quotient 6 as the next digit in the result. 
Result so far: 51064.36
Subtract 2568 from 2660 to get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

On to step 11:
When dividing 920 by 428, we get 2 with a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 51064.362
The remainder is 64 after subtracting 856 from 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 12:
428 goes into 640 1 times with a remainder of 212.
The number 1 becomes the next digit in our result. 
Result so far: 51064.3621
Deduct 428 from 640 and we're left with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Advancing to step 13:
428 can be fit into 2120 4 times, resulting in a remainder of 408.
The number 4 becomes the next digit in our result. 
Result so far: 51064.36214
If we take 1712 away from 2120, we end up with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Moving on to step 14:
When dividing 4080 by 428, we get 9 with a remainder of 228.
Use 9 as the next digit of our solution. 
Result so far: 51064.362149
Subtracting 3852 from 4080 leaves us with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

On to step 15:
If we divide 2280 by 428, we get 5 and a remainder of 140.
Put 5 as the next digit of the answer. 
Result so far: 51064.3621495
If we subtract 2140 from 2280, we get 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 16:
If we divide 1400 by 428, we get 3 and a remainder of 116.
Use 3 as the next digit of our solution. 
Result so far: 51064.36214953
Subtract 1284 from 1400 to get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

The final result is 51064.36214953 with a remainder of 1.16e-07.