We look at the division of 51259220 by 169 
We want to figure out the number of times 51259220 can be divided by 169.

Let's proceed to step 1:
169 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 169

Advancing to step 2:
169 can be fit into 51 0 times, resulting in a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Bring next digit (2) of the dividend behind the 51 and repeat the process: 512 / 169

On to step 3:
If we divide 512 by 169, we get 3 and a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 507 from 512 to get 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 169

Moving on to step 4:
55 divided by 169 is 0 with a remainder of 55.
Write down 0 as next digit of the result. 
Result so far: 30.0
Deduct 0 from 55 and we're left with 55.
Take the next digit (9) from the dividend and append it to 55, then repeat: 559 / 169

Going ahead to step 5:
169 goes into 559 3 times with a remainder of 52.
Write down 3 as next digit of the result. 
Result so far: 303.0
If we subtract 507 from 559, we get 52.
Take the next digit (2) from the dividend and append it to 52, then repeat: 522 / 169

Moving on to step 6:
If we divide 522 by 169, we get 3 and a remainder of 15.
The next digit of our result is 3. 
Result so far: 3033.0
Deduct 507 from 522 and we're left with 15.
Take the next digit (2) from the dividend and append it to 15, then repeat: 152 / 169

Let's proceed to step 7:
When dividing 152 by 169, we get 0 with a remainder of 152.
Use 0 as the next digit of our solution. 
Result so far: 30330.0
The remainder is 152 after subtracting 0 from 152.
Bring next digit (0) of the dividend behind the 152 and repeat the process: 1520 / 169

Going ahead to step 8:
If we divide 1520 by 169, we get 8 and a remainder of 168.
Use 8 as the next digit of our solution. 
Result so far: 303308.0
The remainder is 168 after subtracting 1352 from 1520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Advancing to step 9:
When dividing 1680 by 169, we get 9 with a remainder of 159.
Write down 9 as next digit of the result. 
Result so far: 303308.9
If we subtract 1521 from 1680, we get 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

On to step 10:
169 can be fit into 1590 9 times, resulting in a remainder of 69.
Record the quotient 9 as the next digit in the result. 
Result so far: 303308.99
Subtract 1521 from 1590 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

The final result is 303308.99 with a remainder of 0.069.