Let's divide 42168646 by 51
Our goal is to divide 42168646 by 51.

Let's proceed to step 1:
If we divide 4 by 51, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 51

Advancing to step 2:
The number 51 fits into 42 0 times, leaving a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Fetch the next digit (1) from the dividend, attach it to 42 and continue: 421 / 51

Advancing to step 3:
When dividing 421 by 51, we get 8 with a remainder of 13.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 408 away from 421, we end up with 13.
Bring next digit (6) of the dividend behind the 13 and repeat the process: 136 / 51

Moving on to step 4:
If we divide 136 by 51, we get 2 and a remainder of 34.
Put 2 as the next digit of the answer. 
Result so far: 82.0
If we subtract 102 from 136, we get 34.
Fetch the next digit (8) from the dividend, attach it to 34 and continue: 348 / 51

Let's proceed to step 5:
When dividing 348 by 51, we get 6 with a remainder of 42.
Write down 6 as next digit of the result. 
Result so far: 826.0
Subtract 306 from 348 to get 42.
Include the next digit (6) from the dividend after 42, then repeat: 426 / 51

Moving on to step 6:
51 can be fit into 426 8 times, resulting in a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 8268.0
Subtract 408 from 426 to get 18.
Grab the next digit (4) from the dividend, add it to 18, then carry on: 184 / 51

Advancing to step 7:
If we divide 184 by 51, we get 3 and a remainder of 31.
Put 3 as the next digit of the answer. 
Result so far: 82683.0
The remainder is 31 after subtracting 153 from 184.
Append the next digit (6) from the dividend to 31 and continue with: 316 / 51

Moving on to step 8:
51 can be fit into 316 6 times, resulting in a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 826836.0
The remainder is 10 after subtracting 306 from 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
The number 51 fits into 100 1 times, leaving a remainder of 49.
Record the quotient 1 as the next digit in the result. 
Result so far: 826836.1
If we take 51 away from 100, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 10:
51 can be fit into 490 9 times, resulting in a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 826836.19
If we subtract 459 from 490, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 11:
When dividing 310 by 51, we get 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 826836.196
Deduct 306 from 310 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 12:
51 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 826836.196
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 13:
400 divided by 51 is 7 with a remainder of 43.
The next digit of our result is 7. 
Result so far: 826836.19607
Subtract 357 from 400 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 14:
When dividing 430 by 51, we get 8 with a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 826836.196078
Subtracting 408 from 430 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 15:
The number 51 fits into 220 4 times, leaving a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 826836.1960784
Subtract 204 from 220 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 16:
51 can be fit into 160 3 times, resulting in a remainder of 7.
The next digit of our result is 3. 
Result so far: 826836.19607843
The remainder is 7 after subtracting 153 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final outcome is 826836.19607843, with a leftover of 7e-09.