Let's divide 51270727 by 644
Our goal is to divide 51270727 by 644.

Advancing to step 1:
When dividing 5 by 644, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 644

Going ahead to step 2:
When dividing 51 by 644, we get 0 with a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Fetch the next digit (2) from the dividend, attach it to 51 and continue: 512 / 644

Step 3:
The number 644 fits into 512 0 times, leaving a remainder of 512.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 512, we end up with 512.
Fetch the next digit (7) from the dividend, attach it to 512 and continue: 5127 / 644

Step 4:
When dividing 5127 by 644, we get 7 with a remainder of 619.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtract 4508 from 5127 to get 619.
Append the next digit (0) from the dividend to 619 and continue with: 6190 / 644

Let's proceed to step 5:
644 goes into 6190 9 times with a remainder of 394.
Record the quotient 9 as the next digit in the result. 
Result so far: 79.0
Subtracting 5796 from 6190 leaves us with 394.
Include the next digit (7) from the dividend after 394, then repeat: 3947 / 644

Going ahead to step 6:
The number 644 fits into 3947 6 times, leaving a remainder of 83.
Write down 6 as next digit of the result. 
Result so far: 796.0
Subtracting 3864 from 3947 leaves us with 83.
Take the next digit (2) from the dividend and append it to 83, then repeat: 832 / 644

Advancing to step 7:
644 can be fit into 832 1 times, resulting in a remainder of 188.
Use 1 as the next digit of our solution. 
Result so far: 7961.0
The remainder is 188 after subtracting 644 from 832.
Append the next digit (7) from the dividend to 188 and continue with: 1887 / 644

Step 8:
1887 divided by 644 is 2 with a remainder of 599.
Put 2 as the next digit of the answer. 
Result so far: 79612.0
If we take 1288 away from 1887, we end up with 599.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5990, and continue the process.

Step 9:
When dividing 5990 by 644, we get 9 with a remainder of 194.
The next digit of our result is 9. 
Result so far: 79612.9
If we subtract 5796 from 5990, we get 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Let's proceed to step 10:
The number 644 fits into 1940 3 times, leaving a remainder of 8.
Write down 3 as next digit of the result. 
Result so far: 79612.93
If we take 1932 away from 1940, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 11:
644 can be fit into 80 0 times, resulting in a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 79612.93
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 12:
644 can be fit into 800 1 times, resulting in a remainder of 156.
The number 1 becomes the next digit in our result. 
Result so far: 79612.9301
Subtract 644 from 800 to get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Step 13:
The number 644 fits into 1560 2 times, leaving a remainder of 272.
The number 2 becomes the next digit in our result. 
Result so far: 79612.93012
The remainder is 272 after subtracting 1288 from 1560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Moving on to step 14:
When dividing 2720 by 644, we get 4 with a remainder of 144.
The next digit of our result is 4. 
Result so far: 79612.930124
Subtract 2576 from 2720 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Moving on to step 15:
If we divide 1440 by 644, we get 2 and a remainder of 152.
Write down 2 as next digit of the result. 
Result so far: 79612.9301242
Subtract 1288 from 1440 to get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Going ahead to step 16:
If we divide 1520 by 644, we get 2 and a remainder of 232.
Put 2 as the next digit of the answer. 
Result so far: 79612.93012422
The remainder is 232 after subtracting 1288 from 1520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

The quotient of the division is 79612.93012422, and the remainder is 2.32e-07.