We're dividing 51308742 by 602 
We want to divide 51308742 by 602.

Step 1:
If we divide 5 by 602, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 602

Moving on to step 2:
The number 602 fits into 51 0 times, leaving a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Include the next digit (3) from the dividend after 51, then repeat: 513 / 602

Advancing to step 3:
When dividing 513 by 602, we get 0 with a remainder of 513.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 513, we end up with 513.
Take the next digit (0) from the dividend and append it to 513, then repeat: 5130 / 602

Advancing to step 4:
5130 divided by 602 is 8 with a remainder of 314.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 4816 from 5130 to get 314.
Append the next digit (8) from the dividend to 314 and continue with: 3148 / 602

Step 5:
The number 602 fits into 3148 5 times, leaving a remainder of 138.
Use 5 as the next digit of our solution. 
Result so far: 85.0
If we subtract 3010 from 3148, we get 138.
Take the next digit (7) from the dividend and append it to 138, then repeat: 1387 / 602

Let's proceed to step 6:
If we divide 1387 by 602, we get 2 and a remainder of 183.
Write down 2 as next digit of the result. 
Result so far: 852.0
Deduct 1204 from 1387 and we're left with 183.
Bring next digit (4) of the dividend behind the 183 and repeat the process: 1834 / 602

Going ahead to step 7:
602 goes into 1834 3 times with a remainder of 28.
Record the quotient 3 as the next digit in the result. 
Result so far: 8523.0
If we take 1806 away from 1834, we end up with 28.
Fetch the next digit (2) from the dividend, attach it to 28 and continue: 282 / 602

Moving on to step 8:
282 divided by 602 is 0 with a remainder of 282.
The next digit of our result is 0. 
Result so far: 85230.0
If we subtract 0 from 282, we get 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Going ahead to step 9:
2820 divided by 602 is 4 with a remainder of 412.
The number 4 becomes the next digit in our result. 
Result so far: 85230.4
Deduct 2408 from 2820 and we're left with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Moving on to step 10:
4120 divided by 602 is 6 with a remainder of 508.
Use 6 as the next digit of our solution. 
Result so far: 85230.46
If we subtract 3612 from 4120, we get 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Let's proceed to step 11:
If we divide 5080 by 602, we get 8 and a remainder of 264.
Use 8 as the next digit of our solution. 
Result so far: 85230.468
If we subtract 4816 from 5080, we 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.

Advancing to step 12:
602 goes into 2640 4 times with a remainder of 232.
Use 4 as the next digit of our solution. 
Result so far: 85230.4684
Subtract 2408 from 2640 to get 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Advancing to step 13:
If we divide 2320 by 602, we get 3 and a remainder of 514.
Write down 3 as next digit of the result. 
Result so far: 85230.46843
If we subtract 1806 from 2320, we get 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

Step 14:
If we divide 5140 by 602, we get 8 and a remainder of 324.
Put 8 as the next digit of the answer. 
Result so far: 85230.468438
Deduct 4816 from 5140 and we're left with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Moving on to step 15:
602 can be fit into 3240 5 times, resulting in a remainder of 230.
The next digit of our result is 5. 
Result so far: 85230.4684385
Subtracting 3010 from 3240 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Advancing to step 16:
If we divide 2300 by 602, we get 3 and a remainder of 494.
Write down 3 as next digit of the result. 
Result so far: 85230.46843853
If we subtract 1806 from 2300, we get 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

The final outcome is 85230.46843853, with a leftover of 4.94e-07.