945423 ÷ 51 
We want to divide 945423 by 51.

Moving on to step 1:
If we divide 9 by 51, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (4) from the dividend to 9 and continue with: 94 / 51

Step 2:
51 goes into 94 1 times with a remainder of 43.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 51 from 94 to get 43.
Append the next digit (5) from the dividend to 43 and continue with: 435 / 51

Step 3:
51 goes into 435 8 times with a remainder of 27.
Write down 8 as next digit of the result. 
Result so far: 18.0
Deduct 408 from 435 and we're left with 27.
Fetch the next digit (4) from the dividend, attach it to 27 and continue: 274 / 51

Advancing to step 4:
51 goes into 274 5 times with a remainder of 19.
Write down 5 as next digit of the result. 
Result so far: 185.0
If we subtract 255 from 274, we get 19.
Append the next digit (2) from the dividend to 19 and continue with: 192 / 51

Advancing to step 5:
When dividing 192 by 51, we get 3 with a remainder of 39.
Record the quotient 3 as the next digit in the result. 
Result so far: 1853.0
Deduct 153 from 192 and we're left with 39.
Take the next digit (3) from the dividend and append it to 39, then repeat: 393 / 51

Going ahead to step 6:
If we divide 393 by 51, we get 7 and a remainder of 36.
Write down 7 as next digit of the result. 
Result so far: 18537.0
If we take 357 away from 393, we end up 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 7:
If we divide 360 by 51, we get 7 and a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 18537.7
Deduct 357 from 360 and we're left 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 8:
51 goes into 30 0 times with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 18537.7
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
The number 51 fits into 300 5 times, leaving a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 18537.705
Deduct 255 from 300 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 10:
51 can be fit into 450 8 times, resulting in a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 18537.7058
Deduct 408 from 450 and we're left 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.

Moving on to step 11:
51 goes into 420 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 18537.70588
The remainder is 12 after subtracting 408 from 420.
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 result is 18537.70588 with a remainder of 1.2e-05.