We divide 428590 by 60
We want to figure out the number of times 428590 can be divided by 60.

On to step 1:
The number 60 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 60

Going ahead to step 2:
42 divided by 60 is 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Fetch the next digit (8) from the dividend, attach it to 42 and continue: 428 / 60

Moving on to step 3:
The number 60 fits into 428 7 times, leaving a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 420 away from 428, we end up with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 60

Going ahead to step 4:
If we divide 85 by 60, we get 1 and a remainder of 25.
The next digit of our result is 1. 
Result so far: 71.0
Subtract 60 from 85 to get 25.
Bring next digit (9) of the dividend behind the 25 and repeat the process: 259 / 60

On to step 5:
If we divide 259 by 60, we get 4 and a remainder of 19.
The number 4 becomes the next digit in our result. 
Result so far: 714.0
Subtract 240 from 259 to get 19.
Grab the next digit (0) from the dividend, add it to 19, then carry on: 190 / 60

On to step 6:
The number 60 fits into 190 3 times, leaving a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 7143.0
Subtracting 180 from 190 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
If we divide 100 by 60, we get 1 and a remainder of 40.
Record the quotient 1 as the next digit in the result. 
Result so far: 7143.1
Subtracting 60 from 100 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
When dividing 400 by 60, we get 6 with a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 7143.16
Subtract 360 from 400 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
The number 60 fits into 400 6 times, leaving a remainder of 40.
Put 6 as the next digit of the answer. 
Result so far: 7143.166
If we take 360 away from 400, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 7143.166 with a remainder of 0.004.