Let's divide 51986293 by 406
Our goal is to divide 51986293 by 406.

On to step 1:
406 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 406

Moving on to step 2:
406 goes into 51 0 times with a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Include the next digit (9) from the dividend after 51, then repeat: 519 / 406

Advancing to step 3:
406 goes into 519 1 times with a remainder of 113.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 406 from 519, we get 113.
Bring next digit (8) of the dividend behind the 113 and repeat the process: 1138 / 406

Step 4:
When dividing 1138 by 406, we get 2 with a remainder of 326.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtract 812 from 1138 to get 326.
Include the next digit (6) from the dividend after 326, then repeat: 3266 / 406

Going ahead to step 5:
406 can be fit into 3266 8 times, resulting in a remainder of 18.
Write down 8 as next digit of the result. 
Result so far: 128.0
If we subtract 3248 from 3266, we get 18.
Append the next digit (2) from the dividend to 18 and continue with: 182 / 406

Step 6:
406 goes into 182 0 times with a remainder of 182.
Record the quotient 0 as the next digit in the result. 
Result so far: 1280.0
Deduct 0 from 182 and we're left with 182.
Take the next digit (9) from the dividend and append it to 182, then repeat: 1829 / 406

Step 7:
406 goes into 1829 4 times with a remainder of 205.
The number 4 becomes the next digit in our result. 
Result so far: 12804.0
If we subtract 1624 from 1829, we get 205.
Grab the next digit (3) from the dividend, add it to 205, then carry on: 2053 / 406

Step 8:
When dividing 2053 by 406, we get 5 with a remainder of 23.
The next digit of our result is 5. 
Result so far: 128045.0
The remainder is 23 after subtracting 2030 from 2053.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 9:
406 goes into 230 0 times with a remainder of 230.
Record the quotient 0 as the next digit in the result. 
Result so far: 128045.0
Subtract 0 from 230 to get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Moving on to step 10:
The number 406 fits into 2300 5 times, leaving a remainder of 270.
Record the quotient 5 as the next digit in the result. 
Result so far: 128045.05
If we take 2030 away from 2300, we end up with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Let's proceed to step 11:
406 can be fit into 2700 6 times, resulting in a remainder of 264.
Write down 6 as next digit of the result. 
Result so far: 128045.056
Subtract 2436 from 2700 to get 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

On to step 12:
If we divide 2640 by 406, we get 6 and a remainder of 204.
The number 6 becomes the next digit in our result. 
Result so far: 128045.0566
Subtract 2436 from 2640 to get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

After the division, we end up with 128045.0566 and a remainder of 0.00204.