Let's divide 354321 by 51
We want to figure out the number of times 354321 can be divided by 51.

Going ahead to step 1:
When dividing 3 by 51, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 51

On to step 2:
The number 51 fits into 35 0 times, leaving a remainder of 35.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 35 to get 35.
Fetch the next digit (4) from the dividend, attach it to 35 and continue: 354 / 51

Moving on to step 3:
354 divided by 51 is 6 with a remainder of 48.
Use 6 as the next digit of our solution. 
Result so far: 6.0
The remainder is 48 after subtracting 306 from 354.
Grab the next digit (3) from the dividend, add it to 48, then carry on: 483 / 51

Advancing to step 4:
When dividing 483 by 51, we get 9 with a remainder of 24.
The number 9 becomes the next digit in our result. 
Result so far: 69.0
Deduct 459 from 483 and we're left with 24.
Fetch the next digit (2) from the dividend, attach it to 24 and continue: 242 / 51

Going ahead to step 5:
The number 51 fits into 242 4 times, leaving a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 694.0
The remainder is 38 after subtracting 204 from 242.
Take the next digit (1) from the dividend and append it to 38, then repeat: 381 / 51

On to step 6:
51 goes into 381 7 times with a remainder of 24.
Write down 7 as next digit of the result. 
Result so far: 6947.0
Subtract 357 from 381 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 7:
If we divide 240 by 51, we get 4 and a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 6947.4
Deduct 204 from 240 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 8:
360 divided by 51 is 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 6947.47
Subtracting 357 from 360 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 9:
When dividing 30 by 51, we get 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 6947.47
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 10:
When dividing 300 by 51, we get 5 with a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 6947.4705
Subtract 255 from 300 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 11:
If we divide 450 by 51, we get 8 and a remainder of 42.
Record the quotient 8 as the next digit in the result. 
Result so far: 6947.47058
Subtracting 408 from 450 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 12:
If we divide 420 by 51, we get 8 and a remainder of 12.
The next digit of our result is 8. 
Result so far: 6947.470588
Subtract 408 from 420 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 6947.470588, with a leftover of 1.2e-06.