We're dividing 598485 by 51 
We want to figure out the number of times 598485 can be divided by 51.

Step 1:
51 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 51

Step 2:
59 divided by 51 is 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 8 after subtracting 51 from 59.
Bring next digit (8) of the dividend behind the 8 and repeat the process: 88 / 51

Going ahead to step 3:
If we divide 88 by 51, we get 1 and a remainder of 37.
Write down 1 as next digit of the result. 
Result so far: 11.0
The remainder is 37 after subtracting 51 from 88.
Grab the next digit (4) from the dividend, add it to 37, then carry on: 374 / 51

Moving on to step 4:
51 goes into 374 7 times with a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 117.0
Deduct 357 from 374 and we're left with 17.
Grab the next digit (8) from the dividend, add it to 17, then carry on: 178 / 51

Advancing to step 5:
When dividing 178 by 51, we get 3 with a remainder of 25.
The next digit of our result is 3. 
Result so far: 1173.0
If we take 153 away from 178, we end up with 25.
Bring next digit (5) of the dividend behind the 25 and repeat the process: 255 / 51

Advancing to step 6:
If we divide 255 by 51, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 11735.0
If we subtract 255 from 255, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
The number 51 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 11735.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
When dividing 0 by 51, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 11735.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 11735.0 with a remaining 0.0.